Powder Keg [Magic Player Rewards 2004] Alchemy Set: Mirrodin Besieged Type: Sorcery

Set: Mirrodin Besieged Type: Sorcery Rarity: Rare Cost: {X}{G} Search your library for a green creature card with mana value X or less

Serum was once derived from Mirrodin's blinkmoths

Set: Ravnica: City of Guilds Type: Land — Island Swamp Rarity: Rare ({T}: Add {U} or {B}

And what dies grows the tarmogoyf

where X is the number of Zombies you control

Powder Keg [Magic Player Rewards 2004] Alchemy Set: Mirrodin Besieged Type: SorcerySet: Magic Player Rewards 2004 Type: Artifact Rarity: Rare Cost: {2} At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with mana value equal to the number of fuse counters on Powder Keg.