Serra the Benevolent is a mythic Legendary Planeswalker — Serra card from Modern Horizons (MH1), collector number 26. Current market price: $7.75 (foil $54.88), TCGplayer market prices via Scryfall.
+2: Creatures you control with flying get +1/+1 until end of turn. −3: Create a 4/4 white Angel creature token with flying and vigilance. −6: You get an emblem with "If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead."