Loxodon Lifechanter is a rare Creature — Elephant Cleric card from Core Set 2020 Promos (PM20), collector number 27s. Current market price: — (foil $1.99), TCGplayer market prices via Scryfall.
When this creature enters, you may have your life total become the total toughness of creatures you control. {5}{W}: This creature gets +X/+X until end of turn, where X is your life total.