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

Planesplitter

When you gain this card put The Fracture into play. Apply +1 to the Move value to each of your ships that starts its movement in The Fracture. Apply +2 to the result of each of your units' combat rolls in The Fracture.
Obsidian originAbility – Warfare

Warfare

When you gain this card put The Fracture into play.

Apply +1 to the Move value to each of your ships that starts its movement in The Fracture.

Apply +2 to the result of each of your units' combat rolls in The Fracture.

1in the deck
–chance to draw

Source: Twilight's Fall