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.
{4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.
Near Mint - $10.70
Near Mint Non-English - $10.70
Lightly Played - $9.60
Lightly Played Non-English - $9.60
Played - $7.50
Played Non-English - $7.50
Heavily Played - $6.40
Heavily Played Non-English - $6.40
Damaged - $5.40
Damaged Non-English - $5.40