YZ-Tank Dragon [MFC-054] Super Rare
1st Edition - LP
Not Buying
![King of the Swamp [AST-082] Rare](https://cdn.shopify.com/s/files/1/0836/1931/6002/products/43a6500c-6da7-5257-ba6e-124726f45a33.png?v=1699415512)
King of the Swamp [AST-082] Rare
| Set: | Ancient Sanctuary |
| Card type: | Effect Monster |
| Rarity: | Rare |
| Attack: | 500 |
| Defense: | 1100 |
You can substitute this card for any 1 Fusion-Material Monster. When you do this, the other Fusion-Material Monster(s) must be the correct one(s). Discard this card from your hand to be Graveyard to add a "Polymerization" Spell Card from your Deck to your hand. The Deck is then shuffled.