Celestine, the Living Saint is a rare Legendary Creature — Human Warrior card from Warhammer 40,000 Commander (40K), collector number 10. Current market price: $20.59, TCGplayer market prices via Scryfall.
Flying, lifelink Healing Tears — At the beginning of your end step, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.