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Engine Upgrade

  • -1 Capacity.
  • +1 Ember per turn.
Unlock
Umbra clan level 5
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 1.2Engine Upgrade updated from Spell >>> Room card. Cost reduced from 1 Ember >>> 0 Ember.
  3. Patch 1.0Added without changes from the previous game.

Source

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

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