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

Safety Overrides

After a mech you control is destroyed during ground combat: Your opponent must choose and destroy 2 of their own units on that planet.
Action card

After a mech you control is destroyed during ground combat:

Your opponent must choose and destroy 2 of their own units on that planet.

1in the deck
–chance to draw
Nocomponent action

Source: Uncharted Space