Well, im completely against all but #2 and #4. This is not so good ideas IMO, and the stellar manip. is already far too powerful.
Here's another idea, i think some might like it:
What can realy be useful is as SUPERNOVA stellar manip, which is in nebulae manip(or black hole). Instead of clearing nebulae/black hole, you sacrifice your ship (need to be realy expensive) and it explodes as super nova, clearing any anomaly and creating a new star(s) with planet(s) and asteroid field(s) around it. But, there is a chance to not succeed. It decreases with tech level.
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Emperor Klis't of the Taera Republic.
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