Gaddock Teeg is a mythic Legendary Creature — Kithkin Advisor card from Ultimate Box Topper (PUMA), collector number U21. Current market price: — (foil $13.53), 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.