Unawakened he can get you through most of the solo features on game and can rip through AW defenders. Awakening him is the cherry on the cake, giving him a chance to delay death and faster refresh of his immunities. He's god tier quality (edit: depending on your PI he can finish most people off with his unblockable SP2 at the end of his charges)
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I especially like him for the power shield nodes, hit an s2 for a combined 60k+ damage