Armageddon Clock [Antiquities] Creature Knights reveal a Giant card from

reveal a Giant card from your hand or pay {2}

Set: Commander Masters Type: Legendary Planeswalker — Vronos Rarity: Rare Cost: {3}{U}{U} [+1]: Up to two other target planeswalkers you control phase out at the beginning of the next end step

Set: Battle for Zendikar Type: Creature — Eldrazi Drone Rarity: Uncommon Cost: {1}{U} Devoid (This card has no color

Set: Friday Night Magic 2014 Type: Instant Rarity: Rare Cost: {B}{B} Target creature and all other creatures with the same name as that creature get -3/-3 until end of turn

COMMANDER: Leinore

Armageddon Clock [Antiquities] Creature Knights reveal a Giant card fromSet: 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.