Lesser Diamond Spellstone is a rare Priest spell card that belongs to the "Kobolds & Catacombs" set, which was released on 07.12.2017 and is one of initially 135 cards. The artist of this card was Tyler West Studios, who also made 17 other artworks for Hearthstone.
The flavor text of the card is the following: A diamond, white, this stone the eighth A precious jewel for those of faith A whispered prayer restores the lost But none among them know the cost.
The card is easy to memorize with 97.35% of correct quiz questions.