Hysterical Blindness 
Instant
Creatures your opponents control get -4/-0 until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Creatures your opponents control get -4/-0 until end of turn.