So, in other words, you're looking for an Instant-Win ship.

Yeah, not gonna happen.

@trims2u, No, I'm not looking for an "Instant Win" ship!  If only malevolent civs can build a Death Star, and it requires 1,000 malevolent points at the tail end of one of the malevolent trees, and it requires the largest possible hull, it would not exactly be easy to build.  And zipping around a gigantic or larger map, even at high speed with a one-shot weapon, isn't exactly fast.  It would still take at least 50 turns.

I'd like to see this option, and purists could just choose to avoid it.

Incidentally, on very large maps, I find that toward the end of the game the starter surveyor craft is too weak and too slow.  I like to build a super surveyor ship on a large hull with a survey module, lots of speed, range, and sensor range (and I mean lots) and just enough missiles to make short work of pirates. 

Would be nice to have something like a TerrorStar, but this time with the ability to target single planets only. In order to be able to destroy uninhabitable worlds and turn the resulting debris into something useful... ofc that thing had to be slow, very slow, use upquite an amount of production + time to be finished, and perhaps destroy itself during the process, too... in other words to make it unreliable for an ongoing military use.