@Asuras Your CS is almost perfect, I got just a couple things for you to revise and they are centered around her ressurection ability. First, she can't bring back those who were obliterated. Not even the gods can, and so does she. Second, place a time limiter as to how long a target can be dead before she ressurect them. Nothing longer than one day, though, since I don't want people to feel like death is cheap, even when I don't want to kill any PCs, NPCs most surely will die.
I do know that her power has a limitation in the need for a previous contract, but that is really the only reason I'm allowing you to have this ability, because bringing the dead back is not something I personally like. Though, you character is so good that I'm opening this exception in consideration to your effort. I trully hope that you won't abuse that power.
I was already well aware the "total obliteration" cannot be circumvented. What I meant by obliteration was that, so long as their soul remained, Tamashi could revive them (if they had a pact).
As for the time limit; Tamashi has to be nearby the dead individual within seconds of them dying to resurrect them. If they have a pact, however, she can revive them any time, as her familiars essentially guard their soul until she can have access to it.