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Armageddon Clock
Source: Antiquities (ATQ)
Rarity: U
Artist: Amy Weber

Mana Cost: (CMC: 6)

Card Type: Artifact

Rules Text:
At the beginning of your upkeep, put a doom counter on Armageddon Clock.
At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.
: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.