Shadfir

I' m thinking to start a new hero, i chosed a ILL/RAD controller. Below is a list of the powers i'm thinking to give to my toon (i made it after reading many posts on this forum). Is there someone expert players so kind to help me with this list ?
I mean...first of all i need to know if i'm missing some "must have" powers for a controller, and second which is the best succession of the powers ? (at which lev i have to get a specific power ?)
(sorry for my poor english)

Spectral Wounds, Radiant Aura, Blind, Radiation Infection, Air Superiority, Flash, Accelerate Metabolism, Group Invisibility, Fly, Swift, Health, Phantom Army, Enervating Field, Mutation, Spectral Terror, Lingering Radiation, Choking Cloud, Phantasm, Hasten, EM Pulse, Stamina, Recall Friend, Fire Blast, Fire Ball

I picked up CM this week and i have some questions about it:

1) Wich is the duration of the CM effects ?
2) Has CM even a preventive protection from attacks ?
3) Wich is the best tactics using CM ? Casting it often to all team8s ? or only in case of immob. sleep. etc ?
In 2nd case is there a chance to know who needs CM (without seeing the animations of imm. sleep. etc ?)

thanks a lot