Kadena, Slinking Sorcerer is a mythic Legendary Creature — Snake Wizard Sorcerer card from Commander 2019 (C19), collector number 45. Current market price: — (foil $0.44), TCGplayer market prices via Scryfall.
The first face-down creature spell you cast each turn costs {3} less to cast. Whenever a face-down creature you control enters, draw a card.