03/03/2026 | Press release | Distributed by Public on 03/03/2026 12:02
The skies darken with ash, and the earth shakes as CATACLYSM approaches! Today at 11:00 a.m. PT, the last CATACLYSM cards will be revealed on our Twitch and YouTube channels, closing the reveal season. Starting March 5, join us for community events, the Pre-Release Tavern Brawl, and more as we prepare for the return of the Worldbreaker himself, Deathwing.
We'll be covering everything you need to know to view and participate in the pre-CATACLYSM fun. Also, be sure to check out our preview of some upcoming balance updates.
Useful Links:
Join your favorite content creators as they prepare for the coming CATACLYSM and theorycraft the new expansion. Participants will be streaming on their own personal channels, so make sure you're following your favorite creators when they go live!
All participants need to include at least 10 CATACLYSM cards in their decks (that can be 10 individual cards, 5 duplicates, or anything in between).
Theorycrafters rally in defense of Azeroth! Theorycasting will also be returning on the official Hearthstone Twitch channel. Join them as they watch and cast games from our battle-hardened theorycrafters across participating channels.
Twitch Drops will be enabled category-wide from March 5, 9:00 a.m. to March 6, 9:00 a.m. PT, so you can watch any Hearthstone stream you'd like to earn up to 2 CATACLYSM packs (make sure you link your Twitch and Battle.net accounts so that your viewing time counts towards the drops). On top of that, participating streamers will have Pre-Purchase Mega Bundle codes to give away to their audiences during the event!
We've got some exciting updates for the Pre-Release Tavern Brawl. This is an event where you get to open your CATACLYSM packs early, build a deck, and compete to earn rewards.
The Deathwing, Worldbreaker Hero Card will be available for everyone to play in the Pre-Release Tavern Brawl, even if you don't own it yet, so you can jump straight into CATACLYSM and the new Herald mechanic! Please note that this is a temporary rental. You can also obtain the card for your Collection through the normal means of CATACLYSM packs and, once the expansion launches, crafting.
We've heard your requests for the new cards to shine more in Pre-Release Tavern Brawl, so we're removing older cards that tend to dominate the format.
Pre-Release Tavern Brawl Card Pool
Banned Cards
If you're looking for a challenge, we've got two achievements for you to take a crack at, including a brand-new one that awards a cool new card back for going undefeated!
All players will get one entry into the Pre-Release Tavern Brawl for free. After that, each entry will cost 2 Tavern Tickets, 300 Gold, or 400 Runestones. On each run, lock in a deck and play until you get either 6 wins or 3 losses and earn more new cards based on how well you do!
See our Pre-Release Tavern Brawl Disclosure Page for more on specific rules.
Community Days return with free packs you can use in the Pre-Release Tavern Brawl! From March 10, 10:00 a.m. - March 14, 10:00 a.m. PT, you can get up to 8 packs just for watching any Hearthstone stream (2 hours per drop)!
Obtainable packs:
Watch your favorite streamers, or go live yourself, for a cataclysmic celebration across the Hearthstone category!
Rounding things out, we have a handful of balance changes coming to Standard with Patch 35.0. These updates will be active during our Theorycrafting and Pre-Release Tavern Brawl events. They are in addition to our usual balance adjustments for cards rotating into Wild. Keep an eye out for the full 35.0 Patch Notes for details on those changes.
Dev Comment: To give Deathwing the truly cataclysmic entrance he deserves, we are dialing back a few standout cards from previous expansions to raze the established meta and make room for new cards and strategies. Elise the Navigator is receiving the most significant updates across her kit, and Ursine Maul is also receiving a notable reduction in power, while the rest of the balance changes are on the lighter side. Our goal is for these cards to take a step back in the meta rather than disappear from it entirely. We hope you enjoy trying out the new cards in this refreshed landscape as we kick off a new year of Hearthstone!
Elise the Navigator
Blob of Tar
Creature of Madness
Prescient Slitherdrake
Stonecarver
Unleash the Crocolisks
Ursine Maul
Deja Vu
Remnant of Rage
Help the Hearthstone community unlock all the dragonflights to earn a free Legendary Ebyssian and two Signature copies of Envoy of the End! From February 9 - March 17, visit our CATACLYSM Rally Point page to take part in the community's effort to prepare for Deathwing's attack. Help rally the dragonflights by signing up for our email list, claiming drops on Hearthstone streams, and liking or sharing Hearthstone posts across our social media channels on Instagram, Bluesky, X (formerly Twitter), and Facebook.
Don't forget to doomsday prep: don't miss your chance to get a Pre-Purchase bundle, only available until expansion unlock on March 17 at 10:00 a.m. PT. The Pre-Purchase Mega Bundle includes 80 packs and 10 Golden packs, Legendary and Golden Legendary cards, and 6 Tavern Tickets that you can use to access the Pre-Release Tavern Brawl.