Archangel of Thune is a mythic Creature — Angel card from Double Masters (2XM), collector number 5. Current market price: $51.74 (foil $74.59), TCGplayer market prices via Scryfall.
Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.) Whenever you gain life, put a +1/+1 counter on each creature you control.