I went with a human mage and gave him the "tough" trait so that he was a bit more survivable. I didn't really have any trouble with him dying except...
In The Fighter's Challenge, where you're quickly surrounded by a room full of monsters, both of my back row guys went down quick.
I got a rhythm down for entering the spell in between the melee attacks of the rest of my party. I had an unarmed/evade rogue, a dagger/assassin rogue, and a sword/prot fighter with an item to make his attacks refresh faster. Maybe Ice spells are easier to enter than fire or air, but I did not feel like I was slowed down in combat for doing it. I was only able to cast once per two combat rounds, though the freeze lasted longer than that anyway.
By the end I was casting as much as I wanted and not worried about spell points running out. I had something like 8-9 casts of ice bolt on a full bar, plus I would regen enough for another one every 15 seconds or so. I never even mixed an energy potion.
Bardamu wrote:
fire may be ok to, but Ugguards resist it, and they are the best mobs to grind and you haver to fight them often.
True, but with the fire line you can make your party resist it and make those guys mostly harmless, too.