Powder Keg
Artifact
At the beginning of your upkeep, you may put a fuse counter on this artifact.
, Sacrifice this artifact: Destroy each artifact and creature with mana value equal to the number of fuse counters on this artifact.
Printings & Conditions (2)
Magic Player Rewards 2004 (P04)(Promos: Magic Player Rewards)#1Rare
Urza's Destiny (UDS)(Urza's Destiny)#136Rare
Regular