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

Splintering Gale

At the start of a space combat in this system, choose up to 2 non-fighter ships to gain SUSTAIN DAMAGE until the end of combat.
L'tokk KhraskUnit – Ship – Flagship

Flagship

At the start of a space combat in this system, choose up to 2 non-fighter ships to gain SUSTAIN DAMAGE until the end of combat.

SUSTAIN DAMAGE

8cost
7 (×2)combat
1move
3capacity

Source: Discordant Stars