Martio Batch

Hybridium
After the failure of the DEATH STAR, the Emperor tasked Batch with creating a working Cloaking Device. His first design included Hybridium crystals. But it came with a fatal flaw, while you couldn't be seen, you couldn't see out

Stygium
once the mines on Stygian ran dry, all functional crystals were thought to have gone for good. Batch used the Tarkin to blow up the planet, letting the Stygian core loose.

Rebels
Using the Stygium crystals, Batch created a fleet of TIE Phantoms. The Rebels unfortunately discovered his base and descided that that was the time to attack. The station was destroyed and the Tarkin blown up.

Death
Knowing he had failed the emperor. He fled the galaxy, but his crew mutanied. They killed him and the Emperor was most displeased.