A long time ago when I was a kid, I was really into fantasy books and went through them left and right. For some reason there is this one story that I can only remember a single detail about that keeps popping up and I really would like to find out what it is and re-read it!
I am trying to piece some of the details and I know it's not much to go on, but basically the fact I remember was that these three(maybe more or less) people with no relation were given powers and when they all came together the power merged and gave them the ability to create and destroy the entire universe.
I think the story was basically told from 3 separate perspectives (of the different individuals) and were completely different, but at the end somehow they all tied together and when they merged/met they thought as one individual and was granted some insane universe creating power.
I know this isn't much to go on but does anyone have any remote idea what I am talking about?
EDIT: So to add a few more details, I read this around 8-10 years ago, so the oldest I could've been when I read this was 13ish. So 2011 and earlier?
I also don't believe it was a series, I remember it as being a single novel.
I think the weapon had a really foreign unique name when the three people were merged together, a proper name with capital letter. (I think it had a hyphen in it)