Zur the Enchanter is a rare Legendary Creature — Human Wizard card from Dominaria Remastered (DMR), collector number 374. Current market price: $0.98 (foil $1.36), TCGplayer market prices via Scryfall.
Flying Whenever Zur attacks, you may search your library for an enchantment card with mana value 3 or less, put it onto the battlefield, then shuffle.