Tam, Mindful First-Year is a rare Legendary Creature — Gorgon Wizard card from Lorwyn Eclipsed (ECL), collector number 380. Current market price: $1.28 (foil $2.22), TCGplayer market prices via Scryfall.
Each other creature you control has hexproof from each of its colors. {T}: Target creature you control becomes all colors until end of turn.