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

Mirrorforge

ACTION: Exhaust this card and choose an adjacent system that contains another player's non-fighter ships. That player moves those ships into this system if able, until they have moved at least 4 resources worth of ships, or all ships. Then, resolve a space combat.
Glimmer of MortheusUnit – Structure – Monument

Monument

ACTION: Exhaust this card and choose an adjacent system that contains another player's non-fighter ships. That player moves those ships into this system if able, until they have moved at least 4 resources worth of ships, or all ships. Then, resolve a space combat.

Placement
Hazardous

Source: Monuments