Chemister's Trick 

Instant
Target creature you don't control gets -2/-0 until end of turn and attacks this turn if able.
Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL