Executioner's Swing 
Instant
Target creature that dealt damage this turn gets -5/-5 until end of turn.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target creature that dealt damage this turn gets -5/-5 until end of turn.