Medic's Kitesail is a common Artifact — Equipment card from Reality Fracture (FRA), collector number 173. Current market price: $0.15 (foil $0.34), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+0 and has flying and "Whenever this creature attacks, you gain 1 life." Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)