Dovin basal

Dovin basals were used by the Yuuzhan Vong. Three-meter-wide spherical creatures able to generate powerful gravitational fields, they were used mainly as propulsion devices and shields: they were able to create micro-black holes that could absorb laser shots at the space craft, as well as pretty much anything else, from proton torpedoes and concussion missiles to whole ships and even small planetary bodies. They could also be used to interdict hyperspace travel. The planet Tynna was an ideal location for dovin basal growth, and its crystal blue waters were degraded to a sickly pale yellow by the Yuuzhan Vong while the native Tynnan stood by in fear.

Dovin basals could also dramatically drain deflector shields from nearby enemy craft. However an effective countering to the shield draining came with traditional New Republic ingenuity. By expanding the sphere of the inertial compensator to thirteen meters, it would protect the shields like it would protect against any other stress on the craft. However, if enough dovin basals locked their gravity beams onto the shields, the inertial compensator would expend too much energy, tearing the craft to shreds. Furthermore, they could be used as weapons against planets: a powerful dovin basal dropped on the surface of a planet could target a moon to slow it's orbit and cause it to crash on the planet, decimating both, in a tactic known as Yo'gand's Core. It was first used on the planet Ygziir in the Yuuzhan Vong home galaxy, by the ancient Warmaster Yo'gand during the Cremlevian War. During the Yuuzhan Vong invasion, the alien invaders used the tactic against Sernpidal through its moon Dobido, and Kalarba through the orbiting Hosk Station and its living moon Indobok.

Speculation
In the Star Wars game Knights of the Old Republic, the character Canderous Ordo tells a tale of his Mandalorian Platoon hunting Outer Rim Pirates, only to accidently discover an asteroid about three meters in diameter that seems of a different origin. The "asteroid" then assaults the Mandalorian Platoon through fire, and then escapes through hyperspace. It is possible, although uncertain, that this sighting was one of the earliest of the Yuuzhan Vong's recon missions to the Star Wars Galaxy. However, the game never solidifies.

Appearances

 * New Jedi Order
 * Knights of the Old Republic (mentioned only)