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

Human Genome

Adaptability

At the start of a ground combat round: You may exhaust this card to choose 1 ground force in the active system; that ground force rolls 1 additional die during this combat round.
Federation of Sol originGenome

At the start of a ground combat round:

You may exhaust this card to choose 1 ground force in the active system; that ground force rolls 1 additional die during this combat round.

1in the deck
–chance to draw

Source: Twilight's Fall