Water Wings is a common Instant card from Wilds of Eldraine (WOE), collector number 77. Current market price: $0.26 (foil $0.16), TCGplayer market prices via Scryfall.
Until end of turn, target creature you control has base power and toughness 4/4 and gains flying and hexproof. (It can't be the target of spells or abilities your opponents control.)