King of the Swamp [DT04-EN055] CommonSet: Duel Terminal 4 Card type: Effect Monster Rarity: Common 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). You can discard this card to the Graveyard to add a "Polymerization" from your Deck to your hand.

Set: Throne of Eldraine Type: Legendary Creature — Beast Rarity: Mythic Cost: {2}{G}{G} Vigilance

{T}: Proliferate

Set: Neo Destiny Unlimited Type: Colorless Rarity: Uncommon Retreat cost: Colorless

Set: Eternal Masters Type: Instant Rarity: Uncommon Cost: {R} Choose one —

−X: Exile each permanent with converted mana cost X or less that's one or more colors

When Laquatus's Champion leaves the battlefield

Set: Alternate Art Promos Type: Fighting Rarity: Promo Retreat cost: Colorless

Interested

Set: Ravnica Allegiance Type: Land — Swamp Mountain Rarity: Rare ({T}: Add {B} or {R}

Set: Aether Revolt Prerelease Promos Type: Legendary Artifact Creature — Thopter Rarity: Rare Cost: {1} Flying

then you may return a creature card from your graveyard to your hand

Then destroy Chaos Orb