Nadir Kraken is a rare Creature — Kraken card from Theros Beyond Death Promos (PTHB), collector number 55s. Current market price: — (foil $2.69), TCGplayer market prices via Scryfall.
Whenever you draw a card, you may pay {1}. If you do, put a +1/+1 counter on this creature and create a 1/1 blue Tentacle creature token.