Goatnap is a common Sorcery card from Modern Horizons (MH1), collector number 126. Current market price: $0.17 (foil $0.34), TCGplayer market prices via Scryfall.
Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If that creature is a Goat, it also gets +3/+0 until end of turn.