Is there a limit to the powers of a rogue of void? (like Maid of Life)

Yes, and No. Yes in the sense that, as I’ve talked before, there are different God Tier… Tiers. You still level up post-ascension, and you can still unlock new powers you didn’t know you had, like John learning to poof into wind. For the Rogue of Void, specifically, Roxy needs to focus immensely to do something she’s not actually in tune with- Like Wizards or Pumpkins, to the point of needing the presence of a Muse of Space to create a Space-Coded Egg.

But also, No, in the sense that God Tiers are… Gods. Their powers are supposed to be Vast and Reality-Bending, you still level up and achieve new heights of power, AND what you can do with your Role heavily depends on how you see said role. Chances are if you work around your Hero Title, you can do pretty much anything. Roxy didn’t even consider her ability to make items by Stealing their Nonexistence- But the SECOND Jade brought the idea to her, Roxy simply… Did it. It was as natural as wiggling her fingers. Because it’s just a thing that suits the Hero Title, and Roxy gave it a try.