Gus 
Creature — Gus
This creature enters with a +1/+1 counter on it for each Magic game you have lost to one of your opponents since you last won a game against them.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL