Oaken Power Suit
Artifact — Contraption
Whenever you crank this Contraption, target creature gets +X/+X until end of turn, where X is the greatest power among creatures you control.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL