Cloudseeder is a uncommon Creature — Faerie Spellshaper card from Future Sight (FUT), collector number 33. Current market price: $0.27 (foil $1.53), TCGplayer market prices via Scryfall.
Flying {U}, {T}, Discard a card: Create a 1/1 blue Faerie creature token named Cloud Sprite. It has flying and "This token can block only creatures with flying."