Bloodletter 
Creature — Zombie
When the names of three or more nonland permanents begin with the same letter, sacrifice this creature. If you do, it deals 2 damage to each creature and each player.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL