Skymarcher Aspirant is a uncommon Creature — Vampire Soldier card from Rivals of Ixalan (RIX), collector number 21. Current market price: $0.27 (foil $0.65), TCGplayer market prices via Scryfall.
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) This creature has flying as long as you have the city's blessing.