Armageddon Clock [Antiquities] Treefolk Warrior destroy all untapped creatures that

destroy all untapped creatures that didn't attack this turn

you may search your library for an Equipment card

Set: Innistrad Type: Creature — Vampire Rarity: Rare Cost: {2}{B}{B} Flying

Set: Aether Revolt Type: Artifact Creature — Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1/+1 counters on it

Destroy target nonland permanent with mana value 3 or less

Armageddon Clock [Antiquities] Treefolk Warrior destroy all untapped creatures thatSet: 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.