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 - $10.50
Near Mint Non-English - $10.50
Lightly Played - $9.40
Lightly Played Non-English - $9.40
Played - $7.30
Played Non-English - $7.30
Heavily Played - $6.30
Heavily Played Non-English - $6.30
Damaged - $5.30
Damaged Non-English - $5.30