Urza's Incubator [Commander Anthology Volume II] H10 Set: Black & White: Next

Set: Black & White: Next Destinies Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

then attack it with this card

whose Level equals the total original Levels of those monsters sent to the GY

except by drawing

and then you're done

Urza's Incubator [Commander Anthology Volume II] H10 Set: Black & White: NextSet: Commander Anthology Volume II Type: Artifact Rarity: Rare Cost: {3} As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost {2} less to cast. "Stop thinking like an artificer, Urza, and start thinking like a father!" Rayne, chancellor of the Tolarian Academy