[@Belwicket][@KazeXDZ]
The trouble for me is that it has not gone into enough depth and seems to assume a lot.  For example, contracting a spirit. What does that entail? Is it a mutual agreement, or does the spirit have to first be dominated before it becomes compliant? How do the spirits appear? Do they have a corporeal form when they are not sharing his body? If so, is there range they can be from him? How quickly can he switch between spirits? Is there a recovery time after being possessed? Is there a psychological cost to it? It’s mentioned that his race can utilise the spirits of the dead, is that inherent or does it have to be taught? He can use energy, but how does that manifest? I use energy to walk, but I’m assuming that’s not what is meant here. Once the strengths and limitations are clearer, then a much fairer process of balancing can take place, if keeping all the spirits is truly necessary. In its current state, however, it is looking to be over-powered for this setting. 

Kaze, it should also be considered that as this rp is not going to be 100% action constantly, the history section might want to be fleshed out. At the moment it is not clear what your character’s motives are, or if he even has any. If you explore where he’s been, you might better understand where he’s going. However, the biggest problem right now is the relative strength of your character.