Gaddock Teeg is a rare Legendary Creature — Kithkin Advisor card from Judge Gift Cards 2017 (J17), collector number 3. Current market price: — (foil $22.64), TCGplayer market prices via Scryfall.
Noncreature spells with mana value 4 or greater can't be cast. Noncreature spells with {X} in their mana costs can't be cast.