Ambush is a rare Rogue spell card that belongs to the "Ashes of Outland" set, which was released on 07.04.2020 and is one of initially 135 cards. The artist of this card was Vladimir Kafanov, who also made 87 other artworks for Hearthstone.
The flavor text of the card is the following: Clip-clop clip-clop CLIP-CLOP STAB!
The card is easy to memorize with 97.1% of correct quiz questions.