Armageddon Clock - Revised Edition - 234

Artifact

Mana Cost: {6}

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.

Rare · Revised Edition · #234 (3ED)

Illustrated by Amy Weber