Armageddon Clock [Antiquities] Turtle using their libraries as their

using their libraries as their decks

Note the type of mana spent to pay this activation cost

Set: Zendikar Type: Enchantment — Aura Rare Cost: {3}{W}{W}{W} Enchant creature Enchanted creature gets +3/+3

No earthly armor is protection against this sweetness

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

Armageddon Clock [Antiquities] Turtle using their libraries as theirSet: Antiquities Type: Artifact 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.