I'm kind of disappointed to be honest. We spent like half of the last chapter wasted on pointless drama rather than letting that guy getting karma'ed and freak out that his plan has fallen apart, and here he gets no dialogue and becomes a mindless monster right away who gets poofed.
Didn't feel like the proper payoff after waiting all this time through this whole arc of wanting to see this guy get his just desserts for all the shit he's done. He acted like a smug bitch to the end and never got the smirk wiped off his face.