The biggest problem I see is that those characters (the wizard as well the pure mortal) are build so that they can invoke lots of their aspects at once in combat. What are they exactly? War-hardened lunatics who can't think of anything else than killing? I think either their characters are too much focused on fighting - in which case the GM should oppose such an agglomeration of fighting-related aspects - or the fighting scenes are too much fitting for the use of their aspects. In this case, I as a GM would try to build fighting scenes where more of thier aspects could be used to their disadvantage.
Maybe that's responding to power gaming with power gaming, so the first option would be the better fit, I think...

So no armor would be assumed for an object?

That's the thing and i found nothing in the rules...
Handling it as a consequence might work. The severity of the consequence could be reflecting the duration of the malfunction (mild consequence = the item get's back to functioning a scene later, severe functioning = get a new one) and the power of the item (obviously, loosing a +1 control item ist less distressing than lossing a +3 control/+2 power item).

I was dabbling with a npc who is a university scientist who becomes a technomancer by sponsored magic of an outsider. The scientist has nor idea he is using magic  but refers to it as PSI. He can manipulate technology from a distance, link his mind into computers, starting (or stopping) engines and such like.
While this is still some sort of brainstorming I'm thinking of a storyhook where this scientist is drawn more and mor to the sinister agenda of the outsider and becomes dangerous.

@Besq: I have to agree to a certain point. While the LotR is some kind of a "closed" stoy, the Dresden files are not. And while I would have my own difficulties with a whole magic branch or chaper of technomancers, a single techmage as an aberration of the principles of the world could be an interesting hook to introduce.

Sponsored magic might be a good solution, as it makes a technomancer possible and at the same time maintains the philosophy of the dresdenverse.
Such a technomancer could be a real headache to the players...

All in all, this looks like it should be very easy ton introduce a new faerie court into a campaign. Summer and Winter Courts seem to be something like "Global Players" in the fae realms while there are uncounted more or less powerful aditional courts, all with their own agenda and animosities and relations between them.

I would love to try a dresdenverse game in the late 19th Century, some kind of Sherlock Holmes style. With only limited technology, magic would become much more central to the game, I would assume. But as I'm still reading through the rulebooks, this idea has to wait...

Doesn't look very fae-like to me. What kind of fae lord is he?