King of the Swamp

Aqua / Effect  WATER / 3
This card can be used as a substitute for any 1 Fusion Material whose name is specifically listed on the Fusion Monster Card, but the other Fusion Material(s) must be correct. You can discard this card to the Graveyard; add 1 "Polymerization" from your Deck to your hand.

CARD ID: 79109599
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TCG SetSymbolRarityLowAvgTrend
Ancient Sanctuary AST-082 Rare-,--€-,--€-,--€
Dark Revelation Volume 2 DR2-EN195 Common-,--€-,--€-,--€
Duel Terminal 4 DT04-EN055 Duel Terminal Normal Parallel Rare-,--€-,--€-,--€
Fusion Enforcers FUEN-EN040 Super Rare-,--€-,--€-,--€
Hobby League 1 participation cards C HL1-EN006 Super Rare-,--€-,--€-,--€
Legendary Collection 3: Yugi's World Mega Pack LCYW-EN256 Common-,--€-,--€-,--€
Legendary Decks II LDK2-ENK17 Common-,--€-,--€-,--€


OCG Rulings

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

Previously Official Rulings

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

If "King of the Swamp" is selected for the effect of "Prohibition", you cannot use either of its effects.

Discarding this card is a cost.

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".

Out of Date

You can activate the effect of "King of the Swamp" even if all 3 of your "Polymerization" cards are in your Graveyard.An email ruling states that "King of the Swamp" can only be discarded if the player has at least 1 "Polymerization" in their Deck.

Fusion Substitute Monster Rulings
{{:Card Rulings:Fusion Substitute Monster