Nightcaller

If a Unit is destroyed on another planet: {e}
(LS) you may Engage; search your deck for 1 Umbra Unit of Fuel Cost {2} or less.

(OPT) Destroy 1 other Unit on this planet,
Engage; reveal the top 3 cards of your deck,
add 1 Umbra Unit of Fuel Cost {2}or less, then shuffle the rest.