Ao, the Dawn Sky is a mythic Legendary Creature — Dragon Spirit card from Kamigawa: Neon Dynasty Promos (PNEO), collector number 2p. Current market price: $0.91 (foil $1.65), TCGplayer market prices via Scryfall.
Flying, vigilance When Ao dies, choose one — • Look at the top seven cards of your library. Put any number of nonland permanent cards with total mana value 4 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order. • Put two +1/+1 counters on each permanent you control that's a creature or Vehicle.