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

Principia Aneris

At the start of a round of combat, choose 1 ship in this system, during this combat round, that ship rolls 1 less combat die.
Tnelis SyndicateUnit – Ship – Flagship

Flagship

At the start of a round of combat, choose 1 ship in this system, during this combat round, that ship rolls 1 less combat die.

SUSTAIN DAMAGE

8cost
9 (×4)combat
2move
3capacity

Source: Discordant Stars