September 12, 2026 — Battlegrounds gets a new minion type. Revealed at the BlizzCon opening ceremony, Aberrations arrive with Patch 36.6.1 on September 22, built around discard synergies and Old God Deities. Attendees play them hands-on this weekend.
TL;DR
- New minion type Aberrations: discard cards to feed progress toward awakening a Deity.
- Two Deities per game (random): C'Thun (split stats on awaken) or Y'Shaarj (re-summon fallen Aberrations).
- Three sacrifices (friendly Aberration deaths) summons the Deity.
- New heroes Drest'agath (discard for random Aberration) and Kith'ix (get 2 minions, play one, discard the other).
- Naga rotated out while Aberrations are in; Naga heroes and cards unavailable.
- Aberrations guaranteed in every lobby for the first two weeks; new heroes guaranteed per game over the same window.
- Also announced: Reign of the Black Empire expansion (October 20, new Assemble keyword merging two cards), Journal overhaul tying expansions together narratively, a new 2v2 Tavern Brawl mode, and the Monk class arriving March 2027 — first new Hearthstone class in six years.
Notable cards
The type spans tiers 1–7 with a discard-matters theme throughout: Cutthroat K'Thir and Mindbender Ghur'sha scale the board off discards, Mysterious K'Thir converts dead Tavern spells into +8/+8 chunks, and the five-version Dark Paradox rolls a random Dark Gift each game. New Tavern spells Sludge Corrosion, Corrupted Coin, and Energizing Chamber all double-cast when discarded. Tier 7 Sha of Fear closes the curve.
Balance side: Ghastcoiler drops to tier 5, Bronze Warden to tier 2, plus a long removed/returning list across types. Several heroes are banned from Aberration lobbies (Morchie, Murozond, Sylvanas, Curator/Lich King/Teron/N'Zoth for Y'Shaarj only).
What it means
A full type launch with forced lobby presence is Blizzard pushing a meta reset, not a drip feed. Discard-as-resource is new design space for Battlegrounds — and Old God fatigue aside, C'Thun vs Y'Shaarj as a per-game coin flip is a clean variance hook. Full ceremony coverage in the preview.