If you ever played BG this was the same - the use of Fireball was actually quite limited, as although a powerful spell, it was very easy to burn you own party to a crisp, but there were other spells you could use (e.g. Magic Missile) that although on paper weaker, avoided this problem - I presume Pillars of Eternity also has a mix of types of offensive spell, for different situations - I've not played it enough to know yet, though
i dont explain myself well ... sorry my english is too bad.
in the fight i find a oportunity to give the order to my mage to send a fireball to a enemy who was in a medium range and instead start spelling and send the fireball my mage
runs to the enemy and puts in front of him and starts spelling the fireball. he die in two rounds. and this happens twice. a bug? an poor range of the spells? maybe.
im using wrong the spell? thats why i put my questions to find the answers.