Can I maybe they the role/powers and/or personality of a Heir of Life? Thank you anyways ^^

A Heir of Life sounds like an interesting one, and in a way it relates a bit to Jane given Condy tried to make her a Heiress quite a bunch. Changing other’s lives, and changing their Agency, we can actually see her changing Jake’s Agency and trying to keep him as a source of Life when she goes Crockertier. You could also see it as literally changing someone’s life, for better or worse, they may hold some pretty intense control over their players’ lives. Whatever Change they may go through in their journey, though, Life is broad enough that it could be literally anything.