Cobalt Spellkin is a rare neutral minion card that belongs to the "Descent of Dragons" set, which was released on 10.12.2019 and is one of initially 140 cards. The artist of this card was MAR Studio, who also made 26 other artworks for Hearthstone.
The flavor text of the card is the following: Spews more spells than a sleep-talking wizard.
The card is easy to memorize with 91.55% of correct quiz questions.