CATACLYSM is a core Hearthstone set released on September 13, 2026, featuring 164 cards in our catalogue, all appearing for the first time rather than returning as reprints. Among its most-played cards are Deathwing, Worldbreaker, Arisen Onyxia, and Experimental Animation.
How many cards are in CATACLYSM?
CATACLYSM has 164 cards in total, shown in the spoilers list above.
When was CATACLYSM released?
CATACLYSM was released on 09/21/2026.
Can I open a virtual CATACLYSM booster pack online?
Yes, for free and without an account. Cards Realm has a virtual booster opening simulator for CATACLYSM with realistic, rarity-weighted pulls.
What is the best/most valuable card in CATACLYSM?
Based on current market prices, Deathwing, Worldbreaker is the most valuable card in CATACLYSM. See the full ranking in the Best cards section above.
How do I filter or search cards from CATACLYSM?
Use the Filter spoilers panel in the Spoilers section above to search by name, text, color, rarity, cost, super type and more.
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Frequently asked questions about CATACLYSM
What is the set CATACLYSM?
How many cards are in CATACLYSM?
CATACLYSM has 164 cards in total, shown in the spoilers list above.
When was CATACLYSM released?
CATACLYSM was released on 09/21/2026.
Can I open a virtual CATACLYSM booster pack online?
Yes, for free and without an account. Cards Realm has a virtual booster opening simulator for CATACLYSM with realistic, rarity-weighted pulls.
What is the best/most valuable card in CATACLYSM?
Based on current market prices, Deathwing, Worldbreaker is the most valuable card in CATACLYSM. See the full ranking in the Best cards section above.
How do I filter or search cards from CATACLYSM?
Use the Filter spoilers panel in the Spoilers section above to search by name, text, color, rarity, cost, super type and more.