Dark Contract with the Swamp King [DOCS-EN094] Common Countinuous Trap When that attacking monster destroys

When that attacking monster destroys your opponent's monster by battle: You can activate this effect

is destroyed by battle and sent to the Graveyard

the equipped monster gains 500 ATK x the difference in Levels (during that battle only)

attach this card to it as an Xyz Material

Set: Legendary Decks II Card type: Effect Monster Rarity: Common Attack: 200 Defense: 700 You can Tribute this card

Dark Contract with the Swamp King [DOCS-EN094] Common Countinuous Trap When that attacking monster destroysSet: Dimension of Chaos Card type: Continuous Spell Rarity: Common During your Main Phase: You can Fusion Summon 1 Fiend Type Fusion Monster from your Extra Deck, using monsters from your hand or your side of the field as Fusion Materials. You can only use this effect of "Dark Contract with the Swamp King" once per turn. If Summoning a "D D" Fusion Monster this way, you can also banish monsters from your Graveyward as Fusion Material. Once per turn,