Crypt Rats [Visions]Set: Visions Type: Creature Rat Rarity: Common Cost: {2}{B} {X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X. "Once I dreamt of death, but now it dreams of me And only rats and rotting flesh can hear my silent plea." Mundungu chant

When Hoverguard Sweepers enters the battlefield

Set: HeartGold & SoulSilver: Black Star Promos Type: Grass Rarity: Black Star Promo Retreat cost: Colorless

Knowledge demands sacrifice

Exile two cards from your graveyard: Create a 2/2 green Bear creature token

the source of energy and renewal

Whenever Necromaster Dragon deals combat damage to a player

Set: Darksteel Type: Instant Rarity: Rare Cost: {U} Return all artifacts you control to their owner's hand

Tezzeret bids you to surrender your inventions

Set: Aquapolis Type: Grass Rarity: Uncommon Retreat cost: Colorless

Set: Neo Revelation Unlimited Type: Lightning Rarity: Rare Retreat cost: Colorless

haste as long as you control a Goblin

Set: Eternal Masters Type: Creature — Incarnation Rarity: Uncommon Cost: {3}{U} Flying