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Crucible Extension

  • +4 Capacity.
Unlock
Available with the clan
Umbra champions
Penumbra, Primordium

Changes by patch

  1. Patch 1.2.2Fixed Awakening Thicket, Engine Upgrade, and Crucible Extension being missing from certain card pools.
  2. Patch 1.2Crucible Extension updated from Spell >>> Room card. "+1 Capacity on this floor" >>> "+4 Capacity."
  3. Patch 1.0Added without changes from the previous game.

Source

Card data from the Monster Train 2 Wiki page for Crucible Extension (CC BY-SA 4.0, revision of 2025-11-04), checked against The Punished patch, 10 November 2026. Reviewed .

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