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

Survival Instinct

After a player activates a system that contains your ships: You may move up to 2 of your ships into the active system from adjacent systems that do not contain your command tokens.
Ral Nel Consortium originAbility – Warfare

Warfare

After a player activates a system that contains your ships:

You may move up to 2 of your ships into the active system from adjacent systems that do not contain your command tokens.

1in the deck
–chance to draw

Source: Twilight's Fall