Nael, Avizoa Aeronaut is a uncommon Legendary Creature — Elf Scout card from Dominaria United (DMU), collector number 306. Current market price: $0.13 (foil $0.20), TCGplayer market prices via Scryfall.
Flying Domain — Whenever Nael deals combat damage to a player, look at the top X cards of your library, where X is the number of basic land types among lands you control. Put up to one of them on top of your library and the rest on the bottom in a random order. Then if there are five basic land types among lands you control, draw a card.