Disharmony 
Instant
Cast this spell only during combat before blockers are declared. Untap target attacking creature and remove it from combat. Gain control of that creature until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL