[Huzurdaddi]

The giants do not regen during the magic casting rounds. So that means a *vast* numbers of Flames from Afar ( if you have space age research then Flames from the Sky ) should toast the giants. For 40 giants I *think* it would take something like 25 Falmes from Afar to kill them all. That is 250 gems so it is mroe than likely not worth it.

In combat Rods of the Phoenix, and lots of them, will do the trick, but you probably don't have the tech, nor do you have the gems, nor do you have the screening troops.

Othen that those insanely costly ideas I think that if you are fighting in cold provinces you are going to get smoked, uhm frozen, uhm whatever.