Armageddon Clock [Antiquities] Portal Three Kingdoms you may begin the game

you may begin the game with it on the battlefield

Sacrifice Polluted Delta: Search your library for an Island or Swamp card

you may return target Angel or Human creature card from your graveyard to the battlefield

Set: Shadowmoor Type: Artifact — Equipment Rarity: Uncommon Cost: {3} Equipped creature has "{3}

Armageddon Clock [Antiquities] Portal Three Kingdoms you may begin the gameSet: Antiquities Type: Artifact Rarity: Uncommon Cost: {6} 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.