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

Singularity Charge

At the start of a round of combat: Each unit participating in that combat becomes damaged, if able.
Action card

At the start of a round of combat:

Each unit participating in that combat becomes damaged, if able.

1in the deck
–chance to draw
Nocomponent action

Source: Uncharted Space