[quote=MelonHead]
Mystique doesn't destroy technology, but it does effect pure magic.I think of it more like radiation anyway, the effects are more excessive in certain areas, so you can get away with not dying instantly there.
[/quote]

it also makes technology that does not channel magic useless eventually. 

Though one loop hole is a magic sword would work fine, since it is a blend of magic and technology. Albeit, not a very advanced form of tech.