The Juzam Master 
Legendary Creature — Human Wizard
Creatures you control get +1/+0 and have "At the beginning of your upkeep, this creature deals 1 damage to you."
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL