Engineered Explosives [Ultimate Masters] Magic 2010 players can't untap more than

players can't untap more than one land during their untap steps

Set: Alpha Edition Type: Creature — Treefolk Rarity: Common Cost: {4}{G} The mating habits of Treefolk

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{B} Target player sacrifices a creature

though he never fully comprehended its mystical runes

Engineered Explosives [Ultimate Masters] Magic 2010 players can't untap more thanSet: Ultimate Masters Type: Artifact Rarity: Rare Cost: {X} Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with mana value equal to the number of charge counters on Engineered Explosives.