Walnut Sprite is a common neutral minion card that belongs to the "The Witchwood" set, which was released on 12.04.2018 and is one of initially 135 cards. The artist of this card was Ivan Fomin, who also made 129 other artworks for Hearthstone.
The flavor text of the card is the following: How do you make a walnut laugh? Crack it up!
The card is easy to memorize with 91.74% of correct quiz questions.