Patriar's Humiliation 
Instant
Target creature perpetually loses all abilities, then Patriar's Humiliation deals damage to it equal to the number of creatures you control.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL