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 - $6.25
Near Mint Non-English - $6.25
Lightly Played - $6.00
Lightly Played Non-English - $6.00
Moderately Played - $5.00
Moderately Played Non-English - $5.00
Heavily Played - $3.75
Heavily Played Non-English - $3.75
Damaged - $3.25
Damaged Non-English - $3.25