Tired of the same old Star Wars Death Stars and Starkiller Base? Wait... there is the forgotten Sun Crusher fighter Grand Moff Tarkin had under construction at the MAW Installation awaiting orders that never came. It looks like a golden armored ice cream cone with turbo lasers and an energy resonance disc at the bottom. 11 internal resonance torpedos pass through the tube to the dish array that fires energy bolts into a star systems Sun. This destabilizes the core and causes a supernova. The fighter is covered in quantum crystalline armore that is impenetrable by any weapon. Seems much more formidable than the other Imperial/First Order weapons.

In post-SW books it was captured by Han Solo and spirited away, hidden in the dense gas clouds of Bespin AFAIK...