Nightveil Sprite is a uncommon Creature — Faerie Rogue card from Guilds of Ravnica (GRN), collector number 48. Current market price: $0.23 (foil $0.53), TCGplayer market prices via Scryfall.
Flying Whenever this creature attacks, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)