QUOTE(zzc @ Nov 28 2011, 04:25)

Oh, so the battlecaster magic bonus does not apply to deprecating spell accuracy and damage, is there anything that does that apart from depre proficiency?
Nope.
Apart from accuracy, where it affects all targetted spells equally.
You got three attack stats each for magical and physical attacks. Damage, accuracy and critical chance.
For melee attacks this is simple, damage is how much damage you deal, accuracy is your chance to hit (modified by the targets chance to evade, which is also shown as a miss) and crit is the chance to do a critical attack.
For magical attacks, it is a little harder, since you don't attack directly with magic, like with melee, but cast a spell. Accuracy is used the same way, determining the chance to hit. But damage and critical only applies to direct damage spells from divine, forbidden and elemental spells, where critical is the chance for a critical hit, and damage is a value that is modified by the spells damage modifier to give the total damage.
Deprecating spells are only affected by accuracy, and supportive and curative doesn't use any of those values but rely entirely on the proficiency in the skill.
You can go a hybrid battlecaster, but ironically that means using a staff and light armor, not using a battle-caster weapon.
With light armor instead of cloth armor, you sacrifice spell proficiency in exchange for physical mitigation.
It works quite nicely actually, with staff you can recharge your mana and can have multiple supportive spells running and you are very hard to kill, but your damage output suffers from it.
Makes it slow but steady, kind of like an alternative to heavy armor and 1H, except the main advantage is that you can go on forever, since running out of mana isn't a problem with use of magic missile and a good ether theft staff.