Netherspite Historian is a common neutral minion card that belongs to the "One Night in Karazhan" set, which was released on 11.08.2016 and is one of initially 45 cards. The artist of this card was Ralph Horsley, who also made 15 other artworks for Hearthstone.
The flavor text of the card is the following: She can tell you all about the history of people not STANDING IN THE GREEN BEAM!
The card is easy to memorize with 92.63% of correct quiz questions.