[Enigma]

Ok I am forced to do it. I am in a battle for my life and this may be the only thing that allows us to survive. Waves of enemy ships are advancing on my homeworlds. I want to sacrifice a system and take out his main fleet, so that I have a chance to rebuild.

There are various things you can do to a star, blow it up, create a nebula, produce a black hole. What is most effective? How do you do this without destroying the ship that starts the effect? I want to retrofit an existing ship, and I think the nebula creator is the only one that I could do a retrofit, based on the costs.

Any help would be appreciated.