Potion (101/113) (Stamped) [EX: Delta Species] 102a you can substitute this monster

you can substitute this monster for 1 Fusion Material Monster that lists an Attribute

Set: Speed Duel: Destiny Masters Card type: Normal Spell Rarity: Common Target 2 "Gravekeeper's" monsters in your Graveyard

You can discard 1 WATER monster to the Graveyard to destroy 1 face-down card

Set: Black & White: Boundaries Crossed Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Set: The Dark Illusion Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 1500 Cannot be Normal Summoned/Set

Potion (101/113) (Stamped) [EX: Delta Species] 102a you can substitute this monsterSet: EX: Delta Species Type: Item Rarity: Common