Shudderwock is a legendary Shaman 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 Matt Dixon, who also made 297 other artworks for Hearthstone.
The flavor text of the card is the following: Beware the Shudderwock, my son. We're fresh out of vorpal daggers.
The card is easy to memorize with 96.43% of correct quiz questions.