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

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Smothering Presence

Other players' units in or adjacent to systems that contain your structures lose all of their unit abilities.
Crimson Rebellion originAbility – Biotic

Biotic

Other players' units in or adjacent to systems that contain your structures lose all of their unit abilities.

1in the deck
–chance to draw

Source: Twilight's Fall