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 - $8.60
Near Mint Non-English - $8.60
Lightly Played - $7.70
Lightly Played Non-English - $7.70
Played - $6.00
Played Non-English - $6.00
Heavily Played - $5.20
Heavily Played Non-English - $5.20
Damaged - $4.30
Damaged Non-English - $4.30