Nothing like that, although setting someone's temperature high in the middle of the desert's a real kicker of a time.

[Henry cackles at the mental image, and one is left to wonder: has he done this?]

Curses are bred through ill intent and whatnot, but does that mean the mage in charge can only do bad things with his curses? Heck no. But let me tell you, some of my favorites are DEFINITELY the ones that bring about doom and demise... [He sighs dreamily.] Anyway, I can definitely spell up a little warming hex that helps a person resist the cold. Nothing harmful to it!