Mister Negative 
Legendary Creature — Human Villain
Vigilance, lifelink Darkforce Inversion — When Mister Negative enters, you may exchange your life total with target opponent. If you lose life this way, draw that many cards.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL