I've played alot of BG but I have never been that guy who memorizes all spells, and especially not spell protections. I tend to use spells fairly layman-like and unfocused, mainly using buffs, a few debuffs and AoE/summoning spells etc. With this said, I have never been the best person for stripping enemy mages of their protections, which isn't really needed in BG either and I don't play SCS (partly for that reason!).
So, yesterday I had a mage (don't remember who) cast PfMW and PfNA, so I changed from normal arrows to +1 arrows for my archer, but for some reason they didn't penetrate. Normally I wouldn't even noticed it since I had six characters attacking the mage and I did damage (like Korgans fire damage from his axe etc) and the mage died fairly quickly, but this time I actually looked at the combat log and I was suprised to see that the +1 arrows and +2 bolts didn't do any damage.
So my question is, what did I do wrong? Obviously the PfMW worked as it should since Korgans normal damage didn't penetrate the spell, only the added fire damage. But my magical bows and slings with magical ammo should have done damage, right? Or does the PfMW protect the mage from the magical damage from the arrows/bolts as well?
I feel that I really should know this by now, consdering how much time I've played this game, hehe.. But I'm gonna let you experienced people educate me