Yes I can do some Prank-Kids and Sky Striker (effect monsters) support cards, but I will need time to come up with ideas.
1. The Ultimate Ruler of SIN
Level: 12: Attribute: DARK: Monster type: Fiend: Card type: Fusion/Effect:
ATK: 5000: DEF: 0:
7 "Ruler of SIN" monsters with different names
Must be Special Summoned (from your Extra Deck) by banishing cards you control and/or your GY with the above original names and cannot be Special Summoned by other ways. (You do not use "Polymerization".) This card cannot by destroyed by card effects. This card can make a second attack during each Battle Phase. Your opponent cannot target any face-up monster you control, except "Ultimate Ruler of SIN", for an attack or with Spell/Trap effects.
(Summon Chant: "The 7 Rulers of SIN shall unite and become 1 in order to bring forth the End! Under the power of SIN the world will end! Fusion Summon! Awaken Level 12! Cover the world in SIN, The Ultimate Ruler of SIN!")
2. Underworld of SIN
Field Spell
If you have a Field Spell on the field you can place this card over it and have this card gain it's effects. Once per turn during either player's turn (Quick Effect) you can add 1 banished "SIN" card from your Banished Zone to your hand. Once per turn (during either player's turn) a "SIN" monster you control can't be destroyed (by battle or by card effect).
3. Vampire of SIN
Level: 7: Attribute: DARK: Monster type: Zombie: Card type: Effect:
ATK: 2300: DEF: 0:
If this card was used for the Ritual, Fusion, Synchro, Link, or Xyz Summon of a "SIN" or "Vampire" monster you can Special Summon this card from your GY. If this card inflicts battle damage to your opponent by battle with a monster: Gain LP equal to the battle damage inflicted.
4. Machine Prince of SIN
Rank: 4: Attribute: DARK: Monster type: Machine: Card type: Xyz/Effect:
ATK: 2200: DEF: 0:
3 Level 4 "SIN" monsters
This card gains 300 ATK for each "SIN" monster and Machine-Type monster on the field. Negate the effects of Effect Monsters destroyed by battle with "SIN" monsters and Machine-Type monsters you control. Once per turn: You can detach 1 Xyz Material from this card to target 1 face-up card your opponent controls; destroy it.
5. CXyz Machine King of SIN
Rank: 5: Attribute: DARK: Monster type: Machine: Card type: Xyz/Effect:
ATK: 2600: DEF: 0:
4 Level 5 "SIN" monsters
This card gains 500 ATK for each "SIN" monster and Machine-Type monster on the field. Effect Monsters your opponent controls cannot activate their effects. If this card has "Machine Prince of SIN" as material, it gains this effect.
● Once per turn: You can detach 1 Xyz Material from this card to target 1 card your opponent controls; destroy it.
6. Number C87: Night Queen of the Moon
Rank: 9: Attribute: WATER: Monster type: Plant: Card type: Xyz/Effect:
ATK: 4000: DEF: 3200:
4 Level 9 monsters
While this card is face up on the field all Plant-type monsters you control gain 500 ATK and DEF. During each of your End Phases: Gain 600 LP for each Plant-Type monster you currently control. If this card has "Number 87: Queen of the Night" as material, it gains this effect.
●Once per turn: You can detach 1 Xyz Material from this card, then destroy card equal to the number of face up Plant-Type monsters you control.
7. Rank-Up-Magic SIN Force
Quickplay Spell
Target 1 face-up "SIN" Xyz Monster you control; Special Summon from your Extra Deck, 1 "CXyz SIN" monster with the same Type as that monster you control and with but 1 Ranks higher, by using it as the Xyz Material. (This Special Summon is treated as an Xyz Summon. Xyz Materials attached to it also become Xyz Materials on the Summoned monster.) A Xyz monster Xyz Summoned by this card cannot by destroyed by battle.
8. Lunar Lily Diana
Level: 4: Attribute: WATER: Monster type: Plant: Card type: Effect:
ATK: 1300: DEF: 250:
If you control a "Lunar Lily" monster other than "Lunar Lily Diana" you can Special Summon this card (from your hand). You can only Special Summon "Lunar Lily Diana" once per turn this way. Once per turn if you control 3 or more "Lunar Lily" monsters you can double or half the levels of all "Lunar Lily" monsters you currently control.
9. Tsunami!
Quickplay Spell
Double the ATK of all WATER, Aqua, Fish, and Sea Serpent monsters you currently control, until the end of this turn. During the End Phase of this turn, reduce all their DEF to 0.
10. Six Samurai's Sword: Yatsufusa
Equip Spell
Equip only to a "Six Samurai" monster. When the Equipped monsters destroys an opponent's monster (by battle or card effect) and sends it to the GY: You can Special Summon that monster to your field in Defense Position, but it cannot change Battle Position until the End Phase of your next turn. If this card is in the GY you can treat yourself as a "Six Samurai" monster and Equip yourself with this card and you can pay LP in multiples of 100 and gain that much ATK. You can only use this effect once per Duel.
Appearance: March of the Dead: Yatsufusa from Akame Ga Kill.
11. Double Tune
Normal Spell
If you Synchro Summon this turn you can target 1 Synchro Monster on your field and Special Summon the Materials used for its Summoning but reduce their ATK and DEF to 0 and they must be used to Synchro Summon a Synchro Monster. If not they are destroyed during the End Phase. Once per turn (Quick Effect) you can banish this card from your GY and target 1 Synchro Monster you control: It cannot be destroyed (by battle or card effect) and you take no Battle Damage from battles involving that monster. You can only use either effect of "Double Tune" once per turn.
(If used as a Speed Spell you must have 5 Speed Counters and remove 2.)
12. Legendary Six Samurai Warlord - Shi En
Level: 10: Attribute: DARK: Monster type: Warrior: Card type: Synchro/Effect:
ATK: 2900: DEF: 2100:
2 "Six Samurai" Tuner Monsters + "Legendary Six Samurai - Shi En"
When your opponent activates a Spell/Trap Card (Quick Effect): You can negate the activation, and if you do, destroy it. When this monster battles an opponent's monster: reduce the opponent's monster's ATK to 0.
(idea by CMXB)
13. Performapal Balan the Wonder
Level: 7: Scale 10: Attribute: LIGHT: Monster type: Spellcaster: Card type: Pendulum/Effect:
ATK: 2900 DEF: 1100
Pendulum Effect: Once per turn you can special summon this card to your side of the field from your Pendulum Zone by returning a monster from your field to your hand. If you do you gain LP equal to the returned monster's Level x 500
Monster Effect: When this card is Summoned, and your Field Spell Zone is empty: Take 1 "Performapal Wonderworld" from your Deck or GY and place it on your Field Spell Zone. When this card destroys an opponent's monster by battle: You can Special Summon 1 "Performapal" or "Odd-Eyes" monster from you GY. If a "Performapal" monster, "Odd-Eyes" monster, or "Magician" Pendulum Monster you control attacks, your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step. Once per turn: You can target 1 face-up monster your opponent controls; change that target's battle position.
(Appearance and idea by CMXB: Balan from Balan Wonderworld.)
14. Performapal Wonderworld
Field Spell.
All "Performapal" monsters, "Odd-Eyes" monsters, or "Magician" Pendulum Monsters you control gain 500 ATK and DEF. While "Performapal Balan the Wonder" is on the field: draw 2 cards instead of 1 for your normal draw during your Draw Phase. Once per turn if "Performapal Balan the Wonder" is on the field you gain 500 LP for every "Performapal" monster(s), "Odd-Eyes" monster(s), or "Magician" Pendulum Monster(s) you control.
(Appearance and idea by CMXB: Wonderworld from Balan Wonderworld with Balan, "Timegazer Magician", "Stargazer Magician", various "Performapal monsters, and "Odd-Eyes Pendulum Dragon".
15. Bride of the Six Samurai – Uchikake
Rank: 1: Attribute: WATER: Monster type: Warrior: Card type: Xyz/Effect:
ATK: 2000: DEF: 2000:
5 Level 1 monsters
If this card is destroyed (by battle or card effect) Special Summon the monsters you used as Xyz Material for this card. Your opponent takes any battle damage you would have taken from battles involving this card. Once per turn you can detach 1 Xyz Material from this card and Special Summon 1 Level 5 or below "Six Samurai" monster from your Deck, hand, or GY. Monsters Summoned by this effect gains 300 ATK and DEF.
16. Sky Striker Ace – Hotaru
Level: 4: Attribute: LIGHT: Monster type: Warrior: Card type: Effect:
ATK: 1700: DEF: 500:
During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent. This card gains 300 ATK each time it inflicts Battle Damage to your opponent. When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can Special Summon 1 "Sky Striker Ace" monster with 1500 or less ATK from your Deck, but its ATK is reduce to 0.
17. Lunar Lily Delia
Level: 4: Attribute: WATER: Monster type: Plant: Card type: Effect:
ATK: 500: DEF: 2000:
Cannot be destroyed by battle. After damage calculation, if this card was attacked, and was face-down at the start of the Damage Step: Add 1 Plant-Type monster from your Deck or GY to your hand. f a face-up Plant-Type monster on the field, except "Lunar Lily Delia", is sent to the GY by a card effect or because it was destroyed by battle: You can Special Summon this card from the GY. You can only use this effect once per turn.
18. Swing the Pendulum!
Normal Trap
If "Odd-Eyes Pendulum Dragon", "Clear Wing Synchro Dragon", "Dark Rebellion Xyz Dragon" and "Starving Venom Fusion Dragon" are in your GY you can Special Summon "Odd-Eyes Phantom Dragon", "Dark Anthelion Dragon", "Clear Wing Fast Dragon" and "Starve Venemy Dragon" from your hand, Deck, GY, and Extra Deck to your Main Monster Zones and attach 2 cards from your GY to "Dark Anthelion Dragon".
(Card by CMXB)
19. Sky Striker Ace – Yami
Level: 5: Attribute: DARK: Monster type: Warrior: Card type: Effect:
ATK: 2150: DEF: 2150:
If your opponent controls a monster and you control 2 "Sky Striker Ace) monsters, you can Special Summon this card. Once per turn during your Main Phase you can add 1 "Sky Striker" card from your GY or Deck to your hand.
20. Sky Striker Ace – Sakura
Level: 3: Attribute: EARTH: Monster type: Warrior: Card type: Effect:
ATK: 1000: DEF: 1500:
If you control a "Sky Striker Ace" monster other than " Sky Striker Ace – Sakura ", you can Special Summon this card (from your hand). This card can attack your opponent directly. If this card inflicts battle damage to your opponent by a direct attack: Draw 1 card. If this card is destroyed by battle and sent to the Graveyard: Destroy the monster that destroyed it. You don't take any battle damage from attacks involving this attacking card.