[quote=Gowi]
only thing I’m really concerned about with this amazing piece of prose is the possession technique. How do you propose this is balanced and so on? Otherwise this thing is ready to go.
[/quote]

Well, like she mentioned Lynn can't fully control that many targets(as in actually being able to make them move around and such), if she wanted to fully posses something she'd have to direct all her attention on a single target so theres that. Other than that it is something she can only use to do stuff like see/hear through them and likely couldn't posses a lot of things if she was in combat or something since fighting and possession would both be things that take a large amount of focus, so trying to do both wouldn't work out so hot. 

If its something you're too worried about she could say she can only use it on animals/creatures of lesser intelligence as well. Shes mostly used it for monitoring the swamps so she likely hasn't tried to use it on people very much if at all in the first place