Why NOT a healer next?

Yes, I said healer.

ViVi had the power to make things "the way they should be", that says to me a buff and cure based healer.

With possibly access to all the hidden Allegan Secrets for combat magics.

We've been walking around with him as a minion for ages, eventually we just walk up to a spot, interact with it, and discover that he's restored himself and is behind us, offering us a soul stone that travels BACKWARDS in time.