name: Armageddon Clock
originalText: During your upkeep, put one doom counter on Armageddon Clock. At the end of your upkeep, Armageddon Clock deals X damage to each player, where X is the number of doom counters on Armageddon Clock. During any upkeep, any player may pay {4} to remove a doom counter from Armageddon Clock.
printings: 3ED, 4BB, 4ED, ATQ, FBB, ME4, SUM
text: At the beginning of your upkeep, put a doom counter on this artifact.
  At the beginning of your draw step, this artifact deals damage equal to the number of doom counters on it to each player.
  {4}: Remove a doom counter from this artifact. Any player may activate this ability but only during any upkeep step.
type: Artifact