Test Subject is a rare Priest minion card that belongs to the "The Boomsday Project" set, which was released on 07.08.2018 and is one of initially 136 cards. The artist of this card was Ian Ameling, who also made 28 other artworks for Hearthstone.
The flavor text of the card is the following: “Now I feel... REALLY icky.”
The card is easy to memorize with 91% of correct quiz questions.
