Hearthstone Cataclysm Expansion Incoming
Hearthstone is launching its *Cataclysm* expansion on March 17, drawing heavily on World of Warcraft lore [https://gamerant.com/hearthstone-cataclysm-expansion-rewards-track/]. The expansion will feature the first-ever Deathwing Hero Card and a new rewards track with free cards, gold, and cosmetics [https://playhearthstone.com/en-us/blog/24267727/]. Expect to see some WoW crossover interest!
The *Cataclysm* expansion will be Hearthstone's 32nd expansion, adding 135 new collectible cards to the game. It continues the story from *Across the Timeways*, with Murozond creating a timeline where Deathwing was never defeated. Six classes – Death Knight, Demon Hunter, Rogue, Shaman, Warlock, and Warrior – are aligned with Deathwing and will utilize the new "Herald" keyword. Herald cards upgrade Colossal minions and the Deathwing Hero card. The "Shatter" keyword splits a card in two, combining them for powerful effects when both halves are in hand. The original *World of Warcraft: Cataclysm* expansion launched in December 2010, focusing on the return of Deathwing, who reshaped the world of Azeroth. His emergence caused political upheaval and a renewed conflict between the Horde and Alliance. Hearthstone remains popular in 2026, with estimates of 2.2 to 3.3 million monthly active users and roughly 350,000 daily active users. A large portion of the player base is between 18 and 34 years old. On March 7, 2026, the game had an estimated 313,946 players.
