Massacre Wurm [Mirrodin Besieged]Set: Mirrodin Besieged Type: Creature Phyrexian Wurm Rarity: Mythic Cost: {3}{B}{B}{B} When Massacre Wurm enters the battlefield, creatures your opponents control get 2 2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life.

Set: Fate Reforged Prerelease Promos Type: Creature — Human Monk Rarity: Mythic Cost: {1}{W} Lifelink

When that mana is spent to cast an instant or sorcery spell

Set: Wizards Play Network 2011 Type: Artifact Creature — Phyrexian Imp Rarity: Rare Cost: {1}{B/P} ({B/P} can be paid with either {B} or 2 life

it deals that much damage plus 1 to that permanent or player instead

Raid — {3}{R}{R}: Return Repeating Barrage from your graveyard to your hand

Set: Theros Type: Creature — Demon Rarity: Rare Cost: {5}{B}{B} Flying

" —Idrus

Set: Rise of the Eldrazi Type: Creature — Human Shaman Rarity: Rare Cost: {7}{G} {1}: Target creature you control has base power and toughness 7/7 until end of turn

Whether mechanical or biological

those creatures don't untap during their controllers' next untap steps

Set: Commander 2011 Type: Creature — Dragon Rarity: Rare Cost: {4}{R}{R} Flying

Set: EX: Crystal Guardians Type: Lightning Rarity: Common Retreat cost: Colorless