Kari Zev's Expertise is a rare Sorcery card from Aether Revolt Promos (PAER), collector number 88s. Current market price: — (foil $3.74), TCGplayer market prices via Scryfall.
Gain control of target creature or Vehicle until end of turn. Untap it. It gains haste until end of turn. You may cast a spell with mana value 2 or less from your hand without paying its mana cost.