Loki, God of Lies is a rare Legendary Creature — God Sorcerer Villain card from Marvel Super Heroes Commander (MSC), collector number 512. Current market price: $1.22 (foil $0.87), TCGplayer market prices via Scryfall.
Whenever you cast a spell that targets only a single creature, gain control of that creature until end of turn. If it's your turn, untap that creature and it gains haste until end of turn.