Doubtless One 
Creature — Cleric Avatar
Doubtless One's power and toughness are each equal to the number of Clerics on the battlefield. Whenever this creature deals damage, you gain that much life.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL