Hearthstone has hundreds upon hundreds of cards. Sometimes, rather than make a card with a new mechanic or a unique statline, Blizzard adds in some cosmetic upgrades to already existing cards to make them stand out from the crowd. These cosmetic or Diamond cards give Hearthstone players a unique card border and animation for already existing legendary cards. Bru'kan and Blademaster Samuro were two cards to get the Diamond treatment at the release of the Forged in the Barrens expansion, with the latest diamond card being Drek'Thar from the Fractured in Alterac Valley set.