Heavy Polymerization is a Spell Card of the Normal property within the Polymerization archetype. It is identified by the card number RA05-EN071 and is part of the Rarity Collection 5 set, designated by the set code RA05. This Yu-Gi-Oh! trading card game card carries a Secret Rare rarity and a Holo finish.
2026 • Yu-Gi-Oh! • Rarity Collection 5
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Heavy Polymerization is a Yu-Gi-Oh! trading card game card. It is a Spell Card with Normal property. The card belongs to the Polymerization archetype. It is included in the Rarity Collection 5 set, which has the set code RA05. The specific card number is RA05-EN071. This printing has a Secret Rare rarity and a Holo finish.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Heavy Polymerization
Game
Yu-Gi-Oh!
Rarity, print treatment, and game-specific stats for this card.
Secret Rare
Card Stock
English
Holo
Normal
Polymerization
Abilities, attacks, oracle text, and flavor text printed on the card.
Fusion Summon 1 Fusion Monster from your Extra Deck, using 3 or more monsters from your hand or field as material. You can also banish monsters from your Extra Deck as material, up to the number of monsters your opponent controls, but you lose LP equal to the total ATK of monsters banished this way, when the monster is Fusion Summoned.
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