Spikes_slayer08:
Buffy is almost killed
That part falls closely with Nimue's Peacemaker Series
(found here) just select Nimue. The whole series is listed there by book number or you can check out my Season 6 Forum
[here] for Nimue.
This was the only one close enough to some of the details I was looking for. BUT the one you are remembering about the Powers bringing back Buffy sounds like a lot of other stories too: like JackofSpikes
Time of the Guardians to name one. I know there are others that have the Powers bringing Buffy back. I just can't recall them. Hope someone else can? Hopefully gave you something to read lol! But, I don't think the story you are looking for is either of these.