Card Rulings:Polymerization

"Polymerization":

• Gallery
• Rulings
• Errata
• Artworks
• Tips
• Trivia
• Appearances
• Names

TCG Rulings

Semi-Official Rulings

• You do not declare what Fusion Monster you will Fusion Summon when you activate "Polymerization". This is not decided until "Polymerization" resolves.

• Elemental Hero Prisma: "Elemental Hero Prisma" has the required name when it needs it. It doesn't matter that the name isn't applied after it returns to the Deck or is placed into the Graveyard. You can use it in a Fusion Summon with "Polymerization" just as easily as returning it to the Deck to Special Summon a Neos Fusion Monster.

Mentions in Other Rulings

• Disturbance Strategy: You can also chain "Disturbance Strategy" to "Polymerization" and, if the opponent no longer has the Fusion Material Monsters (if they were in his/her hand for example) then the effect of "Polymerization" disappears.

• Fusion Gate: Fusion Monsters Special Summoned without "Polymerization" while "Fusion Gate" is on the field are still considered properly Summoned by a Fusion Summon. So they may be the target of "Monster Reborn", "Call of the Haunted", etc. (This does not apply to Fusion Monsters Special Summoned by the effects of other cards, such as "Magical Scientist" or "Summoner of Illusions".)

• Fusion Recovery: You can use "Fusion Recovery" to retrieve a Fusion Material Monster that was Summoned with "Power Bond", "Fusion Gate", "Polymerization" etc.

• Fusion Recovery: "Fusion Recovery" targets 1 monster and 1 "Polymerization" in the Graveyard (so it will be negated by "Necrovalley" or "The End of Anubis").

• Horn of Heaven: "Horn of Heaven" cannot be used to negate a Special Summon that results from a Spell, Trap, or effect of an Effect Monster Card. You cannot use "Horn of Heaven" to negate a Special Summon from ... "Polymerization" ....

• King of the Swamp: You can only get 1 copy of "Polymerization" when you discard "King of the Swamp" from your hand.

• King of the Swamp: You can activate the effect of "King of the Swamp" even if all 3 of your "Polymerization" cards are in your Graveyard.

• King of the Swamp: If you use "King of the Swamp" as Fusion Material from your hand, you do not get to activate its effect to search your Deck for "Polymerization".

• Macro Cosmos: You can activate "Polymerization" while "Macro Cosmos" is active on the field because sending Fusion Material Monsters to the Graveyard is an effect of "Polymerization" and not a cost.

• Non-Spellcasting Area: While "Non-Spellcasting Area" is active, you cannot use face-up monsters on the field, except Effect Monsters, for "Polymerization" or Ritual Spell Cards.

• Prohibition: If a Fusion Monster is declared with "Prohibition", it cannot be Fusion Summoned from the Extra Deck with "Polymerization". If a Fusion Material Monster is declared, it cannot be used in a Fusion Summon.

• Soul Exchange: You cannot use "Soul Exchange" for "Polymerization" because "Polymerization" does not use Tribute.

• The Dark - Hex-Sealed Fusion, The Earth - Hex-Sealed Fusion & The Light - Hex-Sealed Fusion: When you use this monster's second effect, you also get its first effect. So this monster enables you to perform a Special Summon of a Fusion Monster without "Polymerization", etc., and also acts as a "substitute" for one of the Fusion Material Monsters.

• The Dark - Hex-Sealed Fusion, The Earth - Hex-Sealed Fusion & The Light - Hex-Sealed Fusion: Using the second effect of this monster does not "properly" Fusion Summon the Fusion Monster. So it cannot be revived from the Graveyard, etc. If you use "Polymerization" then you can revive the Fusion Monster from the Graveyard, even if you used this monster as a "substitute" Fusion Material Monster.

OCG Rulings

• You can use face-down monsters as Fusion Material Monsters.

• If you have no copy of "Polymerization" in your Deck, you cannot the effect of "King of the Swamp", and you cannot activate "Fusion Sage".