Slightly more complicated than a resurrection, but potentially still less time-consuming, and there's only one of her. He finds her mind before the attack and builds it back into her mind as it is, on the fly because that's the best way to get it to integrate; it takes time but not that much of it, less than a degree. And then he finds her other half and drops him a flying note: Samia is alive. -Teah

Is the girl in Reverni still wishing for resurrection?