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

Locust

ACTION: Choose 1 infantry in a system adjacent to your units and roll 1 die. On a result of a 3 or higher, destroy that infantry and choose an infantry in the same or an adjacent system to repeat the roll; for each new roll choose an infantry owned by a different player than the previous infantry, if able.
Action card

ACTION:

Choose 1 infantry in a system adjacent to your units and roll 1 die. On a result of a 3 or higher, destroy that infantry and choose an infantry in the same or an adjacent system to repeat the roll; for each new roll choose an infantry owned by a different player than the previous infantry, if able.

1in the deck
–chance to draw
Yescomponent action

Source: Twilight's Fall