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

Mirage Craft

At the start of a space combat in which you are the defender, you may swap 1 of your ships in the active system with 1 of your ships in another system that contains 1 of your command tokens; the swapped ships cannot transport units.
Glimmer of MortheusBreakthrough

At the start of a space combat in which you are the defender, you may swap 1 of your ships in the active system with 1 of your ships in another system that contains 1 of your command tokens; the swapped ships cannot transport units.

SynergyCyberneticWarfare

Source: Discordant Stars