Dovin basal

Dovin Basals are creatures able to generate powerful gravitational fields. They are used mainly as propulsion devices and shields: they can create micro-blackholes that can absorb laser shots at the space craft, as well as pretty much anything else, from proton torpedoes and concussion missiles to whole ships.

As a side effect, they can also dramatically drain deflector shields of nearby enemy crafts (within meters). Furthermore, they can be used as weapons against planets: a powerful Dovin Basal dropped on the surface of a planet can target a moon to slow it down and make it crash on the planet. This was first used on the planet Sernpidal, resulting in the tragic death of Chewbacca.