Feral Rage is a common Druid spell card that belongs to the "Whispers of the Old Gods" set, which was released on 26.04.2016 and is one of initially 134 cards. The artist of this card was Alexander Alexandrov, who also made 10 other artworks for Hearthstone.
The flavor text of the card is the following: Let's be honest. One option is a lot ragier than the other.
The card is easy to memorize with 92.8% of correct quiz questions.