Oh, and this might be a minor issue, but that Physical immunity power will cause a LOT of hunger stress.  As an 8 strength attack against your 4 discipline.

Something tells me this guy wouldn't be too worried about over feeding on people.

Correct me if I'm wrong, but doesn't Incite Emotion add +2 to the relevant skill when being used for a maneuver?

That's right, and even if he attacks instead of maneuvers, that +2 from the stunt* combined with the weapon 4 from lasting and potent makes the odds of landing a consequence pretty good.

*Said stunt is complete BS and should never be allowed.

I would drop breath weapon and channeling. It has actual guns. You don't need to pay refresh for equipment. Besides breath weapon sucks. Those guns should be weapon three or four, not the two you get from breath weapon, and they definitely shouldn't have their ranged limited like breath weapon. You could probably drop claws using the same logic, but I kind of like.

I could see going with channeling instead of actual weapons, to simulate the spirit taking over and attacking through the plane. Then take some refinements for item slots to use as focus items.

0_o never noticed that before.

That's because it isn't there.

No you don't not for the -2 effect, if they enemy compels for effect (compel for effect are stuff like losing you go or your defense roll) then you may get a fate point if you accept the compel or lose on if you don't. 

You're confusing compel with invoke.

I think you should be able to take on debt instead of taking stress for additional uses of enchanted items too.

Here's a Lore stunt I made for a character in one of my con scenarios:

I Have Just The Thing: Whenever you successfully make a Lore role to identify a catch, you automatically have a specialized shotgun shell loaded with the targets catch. You may spend a FATE point to have enough shells to last the entire scene.

In a campaign I'd probably put some limits on this based on catch availability, or at least require shifts over the target number to identify. But, I specifically did not want that to be an issue in the scenario I made this for.

Also Belial, you forgot about Charity, but you point is still valid.

More than anything, consequences are a tool for pacing the scene. That should be the primary factor when deciding whether or not to take a consequence.