Void Warhead

Void Warhead is a rare and absolutely devastating missile warhead rarely brought back from the Void by the Voidjumpers. It is believed to originate from the same technological tree as Plasma Warhead and Archeoplasma Warhead.
Void Warhead explodes, creating a quickly exploding cloud of superheated plasma, together with a lot of blinding light with a slightly golden hue. It is much, much more dense that even the best archeoplasma warhead, which causes much greater damage. Especially since the warhead is somehow designed to propel most of the plasma roughly forward.
This weapon has enough firepower to oneshot any capital ships. In fact, no ship smaller than a goliath has any chance of surviving a single hit. It also comes in package with guidance systems absolutely invulnerable for electronic countermeasures, armor working wonders against energy weapons and intense evasive abilities. Unfortunately, merely few of them were found to date.