Worldsea Dragon Zealantis [DABL-EN050] Secret Rare
1st Edition - NM
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![King of the Swamp (PSR) [SBC2-ENI23] Prismatic Secret Rare](https://cdn.shopify.com/s/files/1/0451/3388/9694/files/ygo_placeholder_05aca740-ec49-47c9-ac10-92a00236fb52.png?v=1733759899)
King of the Swamp (PSR) [SBC2-ENI23] Prismatic Secret Rare
| Set: | Speed Duel: Battle City Finals |
| Card type: | Effect Monster |
| Rarity: | Prismatic Secret Rare |
| Attack: | 500 |
| Defense: | 1100 |
This card in your hand, field, or GY can be used as a substitute for any 1 Fusion Material whose name is mentioned on the Fusion Monster Card, but the other materials must be correct. You can discard this card to the GY; add 1 "Polymerization" from your Deck to your hand.