As for incorpeality (if that's not a word guess what it is now), I could see two different approaches
1) He/she has a body, but can phase out of it. This is a power I've used before.
2) Is totally incorporeal. If you want to go that route (which I think is what you want) the biggest drawbacks are that he/she (we're gonna go with he just for brevity's sake) can't alter anything without, say, significant effort on his part. Depending on if you wanted to use a motif, maybe he can't be in direct sunlight either. If you wanted him to be able to interfere with stuff more readily, you'd need a drawback to balance that out. Perhaps he has something/somewhere that he draws energy from, and whenever he takes action, it depletes that source. If he exhausts himself, he has to return to that place/acquire more X before he's able to do so again. Since I think Lone wants to lean more towards the science side of thing than the paranormal side of things, perhaps he was a powerful psychic meta who died and his consciousness something something.
Just spitballing. If he's going to be a technopath, that's okay, but he'll need some pretty developed weaknesses, because even with minor technopathy you can wreak a LOT of havoc in a world that depends on smart phones and cell towers. One missed call to 911, one handgun trigger pull...
I'll be working on my other character. Maybe? Might stick to two. Or not. I dunno. Trying to figure this out.