Spinning Darkness 
Instant
You may exile the top three black cards of your graveyard rather than pay this spell's mana cost. Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL