Paladin of Atonement 

Creature — Vampire Knight
At the beginning of each upkeep, if you lost life last turn, put a +1/+1 counter on this creature. When this creature dies, you gain life equal to its toughness.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL