User blog comment:DarkWraths/ParticleShifter/@comment-5651818-20171219064111/@comment-27775853-20171219082100

His higher Acts includes Act 4 to Act 8. At Act 4, while he is powerful, he's still bound by his limitations in some ways, and i don't think to attain Flawless Indestructibility as he can get screwed over by abstract/conceptual shenanigans, but he can reach a state close to that.

At Act 5, with his power to influence existences, he can attain Flawless Indestructibility by removing all weaknesses, but having no weaknesses doesn't mean he has no limitations. There's also the fact that he can't perform such a feat through Absolute Existence as that power is beyond this Act. He also would still struggle against abstract/conceptual shenanigans.

At Act 6 or over, since he can transcend concepts and has great/impeccable influence over the Abstract as well as reaching the pinnacle of his potential as a Prime Embodiment or surpassing it, he may as well not have any actual limitations at that point.

Also, if you're referring to the current version then i recommend you stick to calling him ParticleShifter (you can call him PS for short), but if you're referring to the much less experienced and skilled self then you should call him "Michael Matter" that way there is a distinction between those two, due to the different in capabilities between them. There's also the fact that ParticleShifter abandoned his human name upon finding out that he's a Prime Embodiment ^_^'

Good luck with Acheron.