Official Create-a-Card Thread

[Volteccer]

It works just like the Stands in JoJo, if they got hurt so do you

Yep! That's a good metaphor. I actually based them on how Ka worked from the Millennium World arc, but they basically worked the same way.

[DelCtrl]

Alrighty, so I've been thinking about Rituals a tad more, partly because of Scion's moping about how we don't have any WIND Ritual monsters, and I've come up with some pretty nifty guys. Here you go!
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Cards here
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As a player that likes both WIND monsters and Rituals, this pleases me so much. Plus, pendulum support for rituals? Hope, you da man!
And thanks for indirectly teaching me that I can indent my text.

Now, for some generic retrains of old Fusion Monsters!

Darkblazing Dragon
Dragon/Fusion/DARK/Level 4/ATK 2000/DEF 1500
1 Dragon-type monster + 1 Fire Monster or Plant-type Monster
If this card is Fusion Summoned using a level 3 or lower monster, it gains 800 ATK.
When this card destroys a monster by battle, it can make a another attack this turn.

Black Skull Knight
Fiend/Fusion/DARK/Level 7/ATK 2700/DEF 2300
2 Dark Fiend-type monsters
This card gains 200 ATK for each Dark monster in your graveyard. If this card attacks a defense position monster, inflict piercing damage.
Once per turn, during either players turn, you can target 1 monster on the field: Change its battle position.

Archfiend Skull Dragon
Dragon/Fusion/WIND/Level 5/ATK 2000/DEF 1200
1 Dragon-type monster + 1 Fiend-type monster
This card Fusion Summon cannot be negated. Your opponent cannot activate the effects of monsters Special Summoned from the Extra Deck. While this card is face-up in the field, you can negate the activation of any Trap Card, and if you do, destroy it.

Fairy Aqua Dragon
Sea Serpent/Fusion/WATER/Level 6/ATK 2300/DEF 1900
1 Dragon-type monster + 1 or more Water monsters
This card gains 200 ATK for each Water monster used as this card Fusion Material.
When this card destroys a monster by battle and sends it to the graveyard: Banish it instead.

Golden Kaiser Dragon
Dragon/Fusion/DARK/Level 7/ATK 2300/DEF 2000
2 Dragon-type monsters
This card is unaffected by your opponents card effects. While this card is in your graveyard, you can send 1 Dragon-type monster from your hand or field to the graveyard: Special Summon this card.

Black Flower Wolf
Beast/Fusion/EARTH/Level 5/ATK 1800/DEF 1400
1 Beast-type monster + 1 Plant-type monster
This card gains ATK equal to the ATK of the Beast-type monster used as this card Fusion Material. When this card inflicts battle damage to your opponent: Destroy 1 Spell/Trap card your opponent controls.

Fusionist's Familiar
Beast/Fusion/EARTH/Level 3/ATK 800/DEF 700
2 Monsters
When this card is Fusion Summoned: Add 1 Polymerization from your deck to your hand.
If this card is used as Fusion Material, you can threat it as having any Type and/or Atribute.

Punished "Venom" Eagle
Winged Beast/Fusion/WIND/Level 6/ATK 2100/DEF 1800
2 Winged Beast-type monsters
When this card is Fusion Summoned: Add 1 Winged Beast-type monster from your deck to your hand. When a monster you control destroys a opponent monster by battle or effect: Add the destroyed monster to your hand instead. Once per turn you can discard 1 card: Return 1 card your opponent controls to the bottom of the deck.

Silver Metal Dragon
Machine/Fusion/WIND/Level 6/ATK 1850/DEF 1700
1 Dragon-type monster + 1 Machine-type monster
This card is unaffected by your opponents Spell/Trap cards. This monster gains 200 ATK for each Dragon-type monster in your graveyard. Once per turn, when your opponent activates a Spell/Trap card effect: Negate it, and if you do, destroy it.

[Hope in the Interstice]

lol moping about something has finally yielded a bounty! These look interesting. Are their effects to be treated as a single card name so that they work with Pre-Prep?

Ayep! Downside is that you can only run one of each, a la Harpies. Still, Pre-Prep for the win.

As a player that likes both WIND monsters and Rituals, this pleases me so much. Plus, pendulum support for rituals? Hope, you da man!
And thanks for indirectly teaching me that I can indent my text.

A pleasure, good sir. The cards you've pumped out a good, too. I've always been contemplating generic Fusions, like Volcannon and Blaze Fenix, and I always found it a shame that there was never a proper home for them. I worry that Punished "Venom" Eagle might be pushing it, though.

[Brightshine Stardust]

I think it's supposed to be a reference to the anime "Senki Zesshou Symphogear", that was directed by one of 5D's directors, Katsumi Ono: the protagonist, Hibiki ("echo" in Japanese), used an attack that directly homaged Junk Warrior's Scrap Fist in the first episode of Season 2. It's a shout-out so notable the Wikia itself lists it: unfortunately I can't find that scene on YouTube, so I can't post a link. As for the "LISTEN TO MY SONG" part, those are the first words of Season 1's opening.

Not a video, but someone made a comparison GIF

http://zoid9000.tumblr.com/post/8832...t-did-you-know

The person's blog also noted all the similarities, from Hibiki's Scrap Fist to all the Symphogear reference in Arc-V

http://symphogear.blogspot.co.id/201...nd-yugioh.html

Ah, I see now. Never watched that show.

Funnily enough, after Symphogear G, the next season is called Symphogear GX.






anyway.......

Slicing Gale Phoenix
********/Wind/Winged Beast/Gemini/Effect
ATK 3000/DEF 2500

This card is treated as a Normal Monster while in your hand or face-up on the field. While this card is a Normal Monster on the field, you can Gemini Summon it to have it become an Effect Monster with this effects:
● Once per turn, you can destroy 1 Spell or Trap card on the field. If this card is sent to the Graveyard, Special Summon this card from your Graveyard to your side of the field with an additional 500 ATK.



Forest Cliff Owl
***/Wind/Winged Beast/Gemini/Effect
ATK 1000/DEF 800

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Gemini Summon it to have it become an Effect Monster with this effects:
● This card cannot be destroyed in battle. Each time you take Battle Damage from a battle involving this card, you can add 1 Quick-Play/Equip/Ritual Spell card from your Deck to your hand.


Aero Lizard
***/Wind/Winged Beast/Gemini/Effect
ATK 1500/DEF 1000

This card is treated as a Normal Monster while in your hand, face-up on the field, or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
● Once per turn, if you have not Special Summon any monster this turn, you can Special Summon 1 Level 6 or lower WIND Normal monster from your hand or Graveyard to your side of the field. If the monster Special Summoned by this effect is "Aero Lizard", that "Aero Lizard" is treated as having been Gemini Summoned.



Emergency Gemini Summon
Quick-Play Spell

Activate only by banishing this card from your Graveyard while you control no monster. Special Summon 1 Gemini monster from your Deck or Graveyard to your side of the field. It is treated as having been Gemini Summoned.



Double Blocker
Counter Trap

Shuffle 2 Gemini monsters from your Graveyard to your Deck to negate the activation of a Spell, Trap, or a monster's effect that targets a face-up Gemini Summoned Gemini monster you control, and destroy that Spell/Trap/monster.




.......yeah, if only "Gemini Summon" is an official term. Also, I totally wasn't thinking much when making the monsters, lol

[Michelle]

I love ygo more than the people on this forum who do nothing but bitch about how shitty or broken it is

I know you do.

Do know that I only bitch about this game objectively though. #BlameKonami

Not a video, but someone made a comparison GIF

http://zoid9000.tumblr.com/post/8832...t-did-you-know

The person's blog also noted all the similarities, from Hibiki's Scrap Fist to all the Symphogear reference in Arc-V

http://symphogear.blogspot.co.id/201...nd-yugioh.html


Funnily enough, after Symphogear G, the next season is called Symphogear GX.

Junk warrior best girl.



anyway.......

anyway.......

Slicing Gale Phoenix
********/Wind/Winged Beast/Gemini/Effect
ATK 3000/DEF 2500

This card is treated as a Normal Monster while in your hand or face-up on the field. While this card is a Normal Monster on the field, you can Gemini Summon it to have it become an Effect Monster with this effects:
● Once per turn, you can destroy 1 Spell or Trap card on the field. If this card is sent to the Graveyard, Special Summon this card from your Graveyard to your side of the field with an additional 500 ATK.

Forest Cliff Owl
***/Wind/Winged Beast/Gemini/Effect
ATK 1000/DEF 800

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Gemini Summon it to have it become an Effect Monster with this effects:
● This card cannot be destroyed in battle. Each time you take Battle Damage from a battle involving this card, you can add 1 Quick-Play/Equip/Ritual Spell card from your Deck to your hand.


Aero Lizard
***/Wind/Winged Beast/Gemini/Effect
ATK 1500/DEF 1000

This card is treated as a Normal Monster while in your hand, face-up on the field, or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
● Once per turn, if you have not Special Summon any monster this turn, you can Special Summon 1 Level 6 or lower WIND Normal monster from your hand or Graveyard to your side of the field. If the monster Special Summoned by this effect is "Aero Lizard", that "Aero Lizard" is treated as having been Gemini Summoned.

Emergency Gemini Summon
Quick-Play Spell

Activate only by banishing this card from your Graveyard while you control no monster. Special Summon 1 Gemini monster from your Deck or Graveyard to your side of the field. It is treated as having been Gemini Summoned.

Double Blocker
Counter Trap

Shuffle 2 Gemini monsters from your Graveyard to your Deck to negate the activation of a Spell, Trap, or a monster's effect that targets a face-up Gemini Summoned Gemini monster you control, and destroy that Spell/Trap/monster.

.......yeah, if only "Gemini Summon" is an official term. Also, I totally wasn't thinking much when making the monsters, lol

It go out of my way to use the damn term if I were you, knowing Konami already made pseudo-gemini an archetype at that. I could also go my way to design several Gemini Triggers while at it.

Nice mons, they feel worthwhile the same way Gemini Soldier and the bunch felt at the early days.

[DelCtrl]

I worry that Punished "Venom" Eagle might be pushing it, though.

I was half-asleep when I made it, for some reason I thought that a searcher with a self-fueling removal effect (to the deck, nonetheless) was a good idea. Plus, it can be splashed in any deck thanks to Fusionist's Familiar, so I'll mark it to be remade later. Probably gonna cut the searching effect, make the second effect work only for itself and increase the discard cost to 2 while keeping the removal as my idea was that it could send destroyed monsters back to Motherbase (A.K.A. your hand) and then use them as resources to remove threads.

anyway.......
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Cards here
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.......yeah, if only "Gemini Summon" is an official term. Also, I totally wasn't thinking much when making the monsters, lol

Good Gemini monsters here, I just don’t like that Emergency Gemini Summon don’t have a on field effect, makes it harder to hit the graveyard. Plus, Aero Lizard supports WIND monsters? Extra points for it.

(Guess I should make WIND support soon, huh)

[SynjoDeonecros]

Two archetypes I'd love to see someone make support for: Bounzers, and Hands. What do you guys think?

[Michelle]

I'll be working around a couple of old themes some may or may not remember, of a concept that lasted 3 sets and went nowhere from there. plus a little of other tidbit support here and there that compliments the idea.

I'll be handing out cookies (not actually) to those who figure all cards I'll be referencing then.

[SynjoDeonecros]

Storm Hand
Wind/Level 4/Winged-Beast/Effect
1500/1000
Effect: When this card in your possession is destroyed by your opponent's card (either by battle or by card effect) and sent to the graveyard: You can target 1 card they control; return it to the hand, then you can Special Summon 1 "Rock Hand" from your Deck.

Rock Hand
Earth/Level 4/Rock/Effect
1000/1500
Effect: When this card in your possession is destroyed by your opponent's card (either by battle or by card effect) and sent to the graveyard: You can target 1 Monster they control; Switch it to face-down Defense Position, then you can Special Summon 1 "Storm Hand" from your Deck.

Order Hand - Dexia
Light/Rank 4/Warrior/Xyz/Effect
2000/2000
2 level 4 "Hand" monsters
Effect: You can also Xyz Summon this card by using a "Chaos Hand - Aristeros" you control that has no materials, but it cannot be used as an Xyz Material for an Xyz Summon. When this card is Xyz Summoned: target 2 cards on the field; Shuffle them into the deck.

Chaos Hand - Aristeros
Dark/Rank4/Fiend/Xyz/Effect
2000/2000
2 Level 4 "Hand" monsters
Effect: You can also Xyz Summon this card by using an "Order Hand - Dexia" you control without Xyz Material as an Xyz Material, but it cannot be used as Xyz Material for an Xyz Summon. When this card is Xyz Summoned: Target 2 cards in the graveyard or in the opponent's hand; banish them.

[clairedestroyer!]

Luckily for you all (a lil unlucky for me), I had planned to visit the library today to do some stuff but I got snowed in. So instead I did my write-ups. for some, not all, I chose to rewrite effects to illustrate my point. For ones I didn't, I either did not see a way to do the rough effect while writing it better or was just not particularly inspired to do so.

@Volteccer

Angel of Charity

Spoiler Alert!

Volteccer
"Angel of Charity
Rank 4 LIGHT Fairy/Xyz/Effect
2 Level 4 monsters
Once per turn, you may detach 1 Xyz Material from this monster; draw 3 cards, then discard 2 cards.
ATK/1500 DEF/1500"

Graceful Charity on legs is crazy strong. Compare to Tsukuyomi who has non-generic materials, is costed, and requires your entire hand to be discarded. Lack of hard OPT also hurts.

I'd go with this personally:

Angel of Charity
Rank 4 LIGHT/Fairy/Xyz/Effect
2 Level 4 monsters
You can detach 2 Xyz Materials from this card, then send 1 card in your hand to the Graveyard; Draw 2 cards. You can only use the effect of "Angel of Charity" once per turn.
1500/1500

@Michelle

Archmage of the Stream

Spoiler Alert!

Archmage of the Stream
WIND
++++
[Spellcaster/Xyz/Effect]
2 Level 4 Monsters
When this card is Xyz Summoned: You can make both players send 1 Spell card from their Deck to the Graveyard(Your opponent sends first), your opponent may skip their next turn's Draw phase to negate this effect. Once per turn, you can target 1 Spell card in the Graveyard(s); Detach 1 Xyz Material from this card, then, attach the target to this card as Xyz Material. During either player's turn, if this card has any Spell card attached to it as Xyz Material: You can activate one of the following effect depending of how many copies of a single Spell Card is attached to this card as Xyz Material:
* Immediately after this effect resolves, Activate and resolve a Spell card with that name from your Hand.
* Add 1 Spell card attached to this card to your Hand.
ATK/2300 DEF/1600"

cute idea, but clunky. last effect does not specify what numbers apply to which effect. could be made clearer by declaring a card name. skipping a draw phase is a bad choice, non interactive and there is no real decision process. a main or battle phase is better because then they are gambling whether they need that phase or not to remove archmage in return for its effect.

i hope you mind i made an assumption for the number of spell cards for each effect:

Archmage of the Stream
WIND
++++
[Spellcaster/Xyz/Effect]
2 Level 4 Monsters
When this card is Xyz Summoned: Your opponent can skip their next Main Phase 1, otherwise they send 1 Spell Card from their Deck to the Graveyard, then you send 1 Spell Card from your Deck to the Graveyard. Once per turn, you can target 1 Spell card in either Graveyard; Detach 1 Xyz Material from this card, then, attach the target to this card as Xyz Material. During either player's turn, if this card has a Spell card attached to it as Xyz Material: You can declare 1 Spell Card name attached to this card as Xyz Material, then resolve one of the following effects based on the number of cards with the declared name attached to this card as Xyz Material:
* 1: Immediately after this effect resolves, Activate and resolve a Spell card with that name from your Hand.
* 2 or more: Add 1 Spell card attached to this card to your Hand.
ATK/2300 DEF/1600

Swift Beyonder of the Future World

Spoiler Alert!

Swift Beyonder of the Future World
LIGHT
++++
[Psychic/Effect]
2 Level 4 Monsters
When this card is Xyz Summoned: You can return all Normal Summoned Monsters to the Hand. While this card has Xyz Material(s), if a player Special Summon a Monster(s), they cannot Normal Summon for the rest of this Phase. During either player's turn, when the effect of a Normal Summoned Monster is activated, you can Detach 1 Xyz Material from this card; Negate the Activation and if you do, return it to the Hand.
ATK/2450 DEF/1050

obv anti-monarch support. normal summon hate on such a big body has very dire consequences for other decks though. remember that almost every deck needs to normal summon to fully out a card, even pendulum decks because their normal summon is often how the build scales. this card gets you hit for nearly 5k with very little resistance.

@Hope in the Interstice

Astral Guide

Spoiler Alert!

Astral Guide
LIGHT
Psychic-type/Xyz/Effect
Rank 4
2500 / 2000
'2 Level 4 monsters
If this card is Special Summoned with Xyz Material: You can add 1 "Xyz" or "Rank-Up-Magic" card from your Deck to your hand. Once per turn, during either player's turn: You can detach 1 Xyz Material that is a monster from this card; Special Summon that monster.'

first effect is fine since most of those targets are bad, and this card is not a target for many of them. second effect doesnt need a detach cost. just word it as summoning a material attached to it.

Frozoic Score

Spoiler Alert!

Frozoic Score
WATER
Dinosaur-type/Xyz/Effect
Rank 4
1900 / 1200
'2 Level 4 monsters
Unaffected by your opponent's monster effects while it has Xyz Material. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then target 1 face-up card your opponent controls; negate its effects until the end of the current Phase.'

effects are fine, 1900 is too low for what you get out of it. can be normal summoned over, most cards you want to ping with its effect (minerva, dire, giant hand, etc) will just kill it in battle then use it mp2.

idealized:

Frozoic Score
WATER
Dinosaur-type/Xyz/Effect
Rank 4
2000 / 1200
'2 Level 4 monsters
Unaffected by your opponent's monster effects while it has Xyz Material. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then target 1 face-up card your opponent controls; negate its effects until the end of the current Phase.'

@Sanokal

Skull Magician

Spoiler Alert!

Sanokal
Skull Magician
Rank 4 DARK Fiend-Type Xyz Effect Monster
ATK/2100
DEF/1200
2 Level 4 monsters
You can detach 2 Xyz Materials from this card, then target 1 Attack Position monster your opponent controls; take control of that target, also, only that target can attack this turn. If this card leaves the field: Return all monsters on the field to control of their original owners. You can only control 1 "Skull Magician".

great. fills a niche, relatively balanced stat and effect wise. leave the field trigger effect would be problematic on a main deck monster, but extra deck monsters can activate from the extra deck.

@Baroque

Maxim Dragon

Spoiler Alert!

Maxim Dragon
Rank 4 - DARK - Machine/Xyz/Effect
atk 2300 def 1700
3 Level 4 monsters
Once per turn: You can detach 1 Xyz Material from this card to target 1 card your opponent controls; destroy it, and if it is not destroyed, you can destroy 1 card your opponent controls. At the end of the Battle Phase, if an attack was declared involving this card: You can attach 1 Level 4 monster from your hand to this card as an Xyz Material.

first effect should just be non-targeting. does exactly what you are looking for with the additional niche of hitting untargetables like kozmo. second effect needs a stronger trigger as it is currently too easy. could safely be 2 material with these changes.

idealized:

Maxim Dragon
Rank 4 - DARK - Machine/Xyz/Effect
atk 2300 def 1700
2 Level 4 monsters
Once per turn: You can detach 1 Xyz Material from this card ; Destroy 1 card your opponent controls. At the end of the Battle Phase, if this card destroyed a monster by battle and sent it to the Graveyard: You can attach 1 Level 4 monster from your hand to this card as an Xyz Material.

Giant Orc Party

Spoiler Alert!

Giant Orc Party
Rank 4 - DARK - Fiend/Xyz/Effect
atk 2200 def 0
2 Level 4 monsters
This card gains 400 ATK for each Xyz Material attached to it. If this card attacks, it is changed to Defense Position at the end of the Battle Phase, and its battle position cannot be changed until Main Phase 2 of your next turn. If this card would be destroyed (by battle or by card effect), you can detach 1 Xyz Material from this card instead. This card's name becomes "Giant Orc" while it is on the field.

fine, it feels like a bit more usable, but fairly worse crazy box. nothing really notable.

@Ziz

Solar Prominence Dragon

Spoiler Alert!

Solar Prominence Dragon
ソーラープロミネンス・ドラゴン
Rank 4 FIRE/Pyro/Xyz/Effect

2 Level 4 monsters
While you control another Pyro-Type monster, this card cannot be targeted by your opponent's card effects or targeted for an attack. Once per turn: You can target 1 of your banished cards; attach that target to this card as an Xyz Material. Once per turn: You can detach 1 Xyz Material from this card; excavate the top card of your Deck, and if it is a Pyro-Type monster, immediately after this effect resolves, Normal Summon it, if possible. Otherwise, send it to the Graveyard. Once per turn, during your End Phase: Inflict 500 damage to your opponent for each Xyz Material attached to this card.
ATK/2000 DEF/1500


too non generic, it's type based effects require another card, compare to a card like diamond dire wolf.

Evil Incarnate

Spoiler Alert!

Evil Incarnate
イビル・インカーネート
Rank 4 Laugh/Machine/Xyz/Effect
2 Level 4 monsters
Once per turn: You can excavate the top card of both player's Deck, and if both excavated cards are monsters, the player with the monster with more ATK adds both cards to their hand. If one of the excavated cards is a monster and the other is a Spell/Trap Card, the player with the monster adds both cards to their hand. Otherwise, banish both cards face-down.
ATK/1900 DEF/1800

too gimmicky

Marduke the Sacred Bull

Spoiler Alert!

Marduke the Sacred Bull
聖雄牛 マルドゥク （せいおうし マルドゥク）
Rank 4 Fire/Beast/Xyz/Effect
2 Level 4 monsters
Unaffected by other card effects while it has Xyz Material, except during the Damage Step. Once per turn, if 2 monsters battle, during damage calculation (in either player's turn): You can detach 1 Xyz Material from this card, then target 1 monster on the field; this card gains ATK and DEF equal to that target's ATK and DEF until the End Phase.
ATK/2100 DEF/1600

attack mods are okay, it feels marginally worse than dark rebellion since its not permanent.

@King

Dark Soul King

Spoiler Alert!

Dark Soul King
DARK/Rank 4/Fiend/Xyz/Effect
ATK/DEF 2300/1000
2 Level 4 Monsters
①：When this card is Xyz Summoned Inflict 1200 damage to your opponent. ②: Once per turn you can detach 1 Xyz Material from this card and if you do halve the ATK of all non-Xyz Monsters in the field. ③: If this card is Destroyed by battle by a non-Xyz Monster: banish 1 card in the field

first effect is just dumb. easy to loop into a win. its never going to be using any other effects. it also feels tacked on and non-flavorful.

Glorious Deity Kuzuryu

Spoiler Alert!

Glorious Deity Kuzuryu
LIGHT/Rank 4/Wyrm/Xyz/Effect
ATK/DEF 2500/1000

2 or more Level 4 Monsters
①：This card gains 200 ATK for each Xyz Material it has attached. ②: While this card has 2 or more Xyz Materials it cannot be destroyed either by battle and cards effects. ③：Once per turn during either player turn you can detach 1 Xyz Material from this card and if you do reveal the top card of your Deck and if you do cards effects of the same type of card (Monster, Spell, or Trap) as the revealed card cannot be activated until the end of the turn you activated this effect

ditch the immunity and attack increase. shock master was already busted enough without the ability to resist outs to it, even with an rng element.

@Pendulum (in case youre lurking i guess)

Foolish Spirit of the Shining Lamp Forest

Spoiler Alert!

Foolish Spirit of the Shining Lamp Forest

WIND | [Fairy/Xyz/Effect]
Rank 4
ATK 1200
DEF 1800
2 Level 4 Monsters
This card cannot be destroyed by battle while it has Xyz materials and is in Attack Position. This card gains ATK equal to the Level/Rank of monsters attached to it x 100. Once per turn, during either player's turn (except the turn this card was Special Summoned): You can detach 1 Xyz Material from this card: Attach one card from your hand to this card as an Xyz Material. When a monster declares a Direct Attack: Detach 1 Xyz Material from this card and, if you do, negate that Attack. You can only use this effect of "Foolish Spirit of the Shining Lamp Forest" once per turn.

kinda boring. last effect is nonsensical, unless youre going for gimmicky stuff like Double or Nothing, or counter said gimmicky stuff. Overall underpowered.

@Jakinus

D.D. Undercover Unit

Spoiler Alert!

D.D. Undercover Unit
1800 ATK / 1800 DEF [RK4/Warrior/DARK]
2 Level 4 monsters
You can detach 1 Xyz Material from this card, then target up to 3 banished cards; return them to the Graveyard, then destroy the same number of Set cards on the field. Cards and effects cannot be activated in response to this effect's activation. If this card is banished while face-up on your side of the field, you can activate this effect: Banish 1 face-up card on the field. You can only use each effect of "D.D. Undercover Unit" once per turn.

fine, fairly strong, fulfills a niche. destroying set cards should be optional so youre not forced to destroy your own. chainability limit should apply only to spells and traps so that it is still interactive with cards like veiler and ghost ogre. last effect should target

idealized:
D.D. Undercover Unit
1800 ATK / 1800 DEF [RK4/Warrior/DARK]
2 Level 4 monsters
You can detach 1 Xyz Material from this card, then target up to 3 banished cards; return them to the Graveyard, then you can destroy the same number of Set cards on the field. Spell/Trap cards, and their effects, cannot be activated in response to this effect's activation. If this card is banished while face-up on your side of the field: You can target 1 face-up card on the field; Banish that face-up card. You can only use each effect of "D.D. Undercover Unit" once per turn.

Unleashed Raging Chain

Spoiler Alert!

Unleashed Raging Chain
1850 ATK / 1000 DEF [RK4/Sea Serpent/FIRE]
2 Level 4 monsters
You can only control 1 "Unleashed Raging Chain". Once per turn: You can detach 1 Xyz Material from this card to activate 1 of these effects;
Discard 1 monster, then send, from your Deck to your Graveyard, 1 monster that has a different Attribute from that discarded monster.
Send 1 Spell/Trap card from your Deck to your Graveyard.
Reveal 3 monsters from your Deck, then place them on the top of your Deck in any order.

still needs to be hard opt because cards like dire and f0 let you avoid control 1 effects.

@Eva

Windstorm Tyrant

Spoiler Alert!

Windstorm Tyrant
羽皇龍　－ウィンドストーム・タイラント－
Wind Dragon / Xyz / Effect
RK4 2500/2000
2 or more Level 4 monsters
(1) This card gains 100 ATK for each Xyz Material attached to an Xyz Monster on the field.
(2) Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then reveal 1 card in your hand; shuffle into the Deck both that revealed card and 1 card your opponent controls that is the same Card Type (Monster, Spell, or Trap).
(3) If this card with Xyz Material is destroyed by battle or card effect and sent to the Graveyard: You can target 1 Xyz Monster you control; attach this card from your Graveyard to that target as Xyz Material.

i like this one a lot. second effect is fine in mechanics, should be hard opt so that youre incentivized to make 1 copy with more materials instead of multiple with less.

idealized:
Windstorm Tyrant
羽皇龍　－ウィンドストーム・タイラント－
Wind Dragon / Xyz / Effect
RK4 2500/2000
2 or more Level 4 monsters
(1) This card gains 100 ATK for each Xyz Material attached to an Xyz Monster on the field.
(2) During either player's turn: You can detach 1 Xyz Material from this card, then reveal 1 card in your hand; shuffle into the Deck both that revealed card and 1 card your opponent controls that is the same Card Type (Monster, Spell, or Trap). You can only use this effect of “Windstorm Tyrant” once per turn.
(3) If this card with Xyz Material is destroyed by battle or card effect and sent to the Graveyard: You can target 1 Xyz Monster you control; attach this card from your Graveyard to that target as Xyz Material.

Zyx, the Ancient Magi-Weapon

Spoiler Alert!

Zyx, the Ancient Magi-Weapon
古代魔道兵器　ＺＹＸ　（こだいまどうへいき　ＺＹＸ）
Light Rock / Xyz / Tuner / Effect
RK4 1000/2000
2 Level 4 monsters
This card can be used as a Synchro Material as a Level 0 monster. You can only use the each effect of "Zyx, the Ancient Magi-Weapon" once per turn.
(1) You can detach 1 Xyz Material from this card; Special Summon 1 Synchro Monster from your Extra Deck in Defense Position, but its effects are negated, it cannot attack, and is destroyed during the end of this turn.
(2) If this card is destroyed by battle or effect and sent to the Graveyard: You can Special Summon 1 Tuner Monster from your Extra Deck in Defense Position.

fine. its xyz synchro support that lets you tag stuff in for slot investment. being able to consistently summon it and use its effects feels a tiny bit too rare to be busted. more cute than anything.

@Deadborder

Gratavic Vector

Spoiler Alert!

Gravitic Vector
グラビティック・ベクター
EARTH Rank 4 Rock Xyz Monster
1900/2500
2 Level 4 monsters
You can only use the (1) effect of "Gravitic Vector" once per turn.
(1): During either player's turn, if your opponent Special Summons 2 or more monsters: You can detach 1 Xyz Material from this card; change those monsters to Defense Position, also those monsters cannot be Tributed for or used as Material for a Special Summon this turn.
(2): While you control fewer monsters than your opponent, if a monster you control attacks a Defense Position monster, inflict piercing battle damage to your opponent.

cute and fine, feels a little underpowered but generic nightmare is fine enough.

@DelCtrl

Gate Summoner

Spoiler Alert!

Gate Summoner
Spellcaster/Xyz/LIGHT/Rank 4/ATK 500/DEF 2500
2 level 4 monsters
Once per turn, during either player turn: You can detach 2 Xyz material from this card, then Special Summon from your deck or graveyard 1 Level 5 or higher monster ignoring its summoning conditions, but its effects are negated until the End Phase of this turn. If a monster Special Summoned by this card effect cannot be Normal Summoned, banish it during your opponent next End Phase.

should restrict summons after it is summoned to prevent extra deck shenanigans and ignoring every single downside.

Thrash Metal King

Spoiler Alert!

Thrash Metal King
Spellcaster/Xyz/DARK/ATK 2200/2000
2 Level 4 monsters
While this card have an Xyz material, it can attack your opponent directly. Once per turn, you can detach 1 Xyz material from this card: negate the effects of all other face-up monsters on the field, until the End Phase, and if you do this card gains 300 ATK for each face-up monster currently in the field, except this card.

fine, definitely doesnt need both a direct attack and a pump effect for no cost. if one had to go, the direct attack should, and if so the boost should be temporary.

@Drakylon

Differnet Dimension Pathfinder

Spoiler Alert!

Different Dimension Pathfinder
RANK 4 | LIGHT | [Fairy/Effect]
2300 / 1900
2 Level 4 monsters
During your Main Phase, you can detach 1 Xyz Material from this card: Reveal the top 4 cards of your Deck, then resolve the following effects in sequence:
Your opponent selects 1 card; banish it face-down.
You select 1 card; banish it face-up.
Your opponent selects 1 card; send it to your Graveyard.
The remaining card is added to your hand, and you cannot add cards to your hand for the rest of this turn.
You can only activate the effect of "Different Dimension Pathfinder" once per turn.

rng effects are by definiton unviable because you are unable to adapt the effect to the situation at hand. its a cute card though.

@Mari

Monking, Leader of the Apes

Spoiler Alert!

Monking, Leader of the Apes
Rank 4, EARTH
[Beast/Xyz/Effect]
2000/1500
2 Level 4 Monsters
Once per turn: you can detach 1 Xyz Material from this card to activate 1 of these effects:
● Target 1 Beast-Type or Beast-Warrior-Type Monster you control; it cannot be destroyed by battle or card effects until your next Standby Phase.
● This card gains 200 ATK for each Beast-Type and Beast-Warrior-Type Monsters you control.

fine, could prob stand to be a quick effect, so that it can dodge entry traps. stuff like that is p skillful so def consider it.

That's all. If you have further questions or comments (or the mention tags broke) feel free to talk to me.