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

Plenary Orbital

DEPLOY: After you activate a system, attach this card to a non-home planet other than Mecatol Rex you control in that system that does not contain a space dock. The planet this card is attached to contains this unit. Up to 8 fighters in this system do not count against your ships' capacity. Up to 2 non-fighter ships in the system do not count against your fleet pool. This unit cannot be affected by opponent's action cards. When this unit is destroyed or removed, purge this card.
Unit – Structure – Plenary Orbital

Plenary Orbital

DEPLOY: After you activate a system, attach this card to a non-home planet other than Mecatol Rex you control in that system that does not contain a space dock. The planet this card is attached to contains this unit.

Up to 8 fighters in this system do not count against your ships' capacity. Up to 2 non-fighter ships in the system do not count against your fleet pool.

This unit cannot be affected by opponent's action cards.

When this unit is destroyed or removed, purge this card.

PLANETARY SHIELD · PRODUCTION 10

Source: Absol