No sure if its awfully relevant .. but I'm currently playing an all-mage party:
Me - cleric/mage lvl 12/12
edwin - conjurer ( i think) lvl 15
Self-made char. - sorcerer lvl 15
At the moment its extremely easy .. even dragons see only a red fog of magic missiles before they fall.
Also played a party which consisted of:
me - (avenger) Druid
viconia - cleric
Edwin - Conjurer
That party made it to the last battle of ToB ( with another ToB-PC included),
but was lost due to a computer crash. Definetly this party wasnt very power-heavy at first sight, but they were definetly a force to be reckoned with.
So magic-heavy parties .. even not very offensive-ones, can make it in my opinion
Hope it helpz a little [img]smile.gif[/img]