Zur the Enchanter is a rare Legendary Creature — Human Wizard card from Modern Masters 2017 (MM3), collector number 204. Current market price: $1.11 (foil $1.56), 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.