Scion of Oona is a rare Creature — Faerie Soldier card from Lorwyn (LRW), collector number 83. Current market price: $14.51 (foil $47.26), TCGplayer market prices via Scryfall.
Flash Flying Other Faerie creatures you control get +1/+1. Other Faeries you control have shroud. (They can't be the targets of spells or abilities.)