During your upkeep, put one doom counter on Armageddon Clock. At the end of your upkeep, Armageddon Clock deals X damage to each player, where X is the number of doom counters on Armageddon Clock. During any upkeep, any player may pay 4 to remove a doom counter from Armageddon Clock.
Near Mint - $0.10
Near Mint Non-English - $0.10
Lightly Played - $0.10
Lightly Played Non-English - $0.10
Moderately Played - $0.10
Moderately Played Non-English - $0.10
Heavily Played - $0.10
Heavily Played Non-English - $0.10
Damaged - $0.10
Damaged Non-English - $0.10