Twilight's Fall – a separate game. Twilight Imperium's expansions, mods and rules topics are not part of it.

War Machine

When 1 or more of your units use PRODUCTION: Apply +4 to the total PRODUCTION value of your units and reduce the combined cost of the produced units by 1.
Action card

When 1 or more of your units use PRODUCTION:

Apply +4 to the total PRODUCTION value of your units and reduce the combined cost of the produced units by 1.

1in the deck
–chance to draw
Nocomponent action

Source: Uncharted Space

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tirules.com
  • A second War Machine cannot be played during use of production to give +8 to the total production value and/or to reduce the combined cost of the produced units by 2.
  • War Machine may only be used by effects that cause a unit to use its PRODUCTION ability. It cannot be used for other effects that produce units.