Dour Port-Mage is a rare Creature — Frog Wizard card from Bloomburrow (BLB), collector number 303. Current market price: $3.53 (foil $5.53), TCGplayer market prices via Scryfall.
Whenever one or more other creatures you control leave the battlefield without dying, draw a card. {1}{U}, {T}: Return another target creature you control to its owner's hand.