Bog Gnarr 
Creature — Beast
Whenever a player casts a black spell, this creature gets +2/+2 until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Creature — Beast
Whenever a player casts a black spell, this creature gets +2/+2 until end of turn.