Teferi, Mage of Zhalfir is a rare Legendary Creature — Human Wizard card from Iconic Masters (IMA), collector number 75. Current market price: $1.78 (foil $5.53), TCGplayer market prices via Scryfall.
Flash Creature cards you own that aren't on the battlefield have flash. Each opponent can cast spells only any time they could cast a sorcery.