Urza's Tower (Mountains) [Antiquities] XY115 sacrifice Contamination unless you sacrifice

sacrifice Contamination unless you sacrifice a creature

Set: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {1}{U} Split second

which must have a single target

Set: EX: Team Rocket Returns Type: Colorless Rarity: Rare Retreat cost: Colorless

that player puts that card onto the battlefield and all other cards revealed this way into their graveyard

Urza's Tower (Mountains) [Antiquities] XY115 sacrifice Contamination unless you sacrificeSet: Antiquities Type: Land Urza's Tower Rarity: Uncommon {T}: Add {C}. If you control an Urza's Mine and an Urza's Power Plant, add {C}{C}{C} instead. Urza always put Tocasia's lessons on resource gathering to effective use.