Nethersoul Buster is a rare Warlock 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 Nicola Saviori, who also made 38 other artworks for Hearthstone.
The flavor text of the card is the following: Why did the demon cross the streams? To get to The Other Side.
The card is on average to memorize with 84.44% of correct quiz questions.