[@ZAVAZggg] Yes correct, the Keys are not natural parts of your characters.

[@Stylobilly] Yes, you pick your own aspects.

Becoming a second-generation New God is a bit fraught, but doable.

The only issue I have with this idea would be that immortality and invulnerability are very difficult commodities to come by, even for New Gods much less just a regular sorcerer. Remember how much effort Mottom has to go to just to maintain her "youth"?

And no, there is no set number.