I was just trying to clarify a minor point or two by having Imoen cast defensive spells (Spell Trap with Spell Shield and/or Pro. vs. Abjuration), then have Nalia try various defence-dispellers (Ruby Ray, etc.) But the results have dumbfounded me, because they have been completely variable!
Even when casting exactly the same spells against exactly the same defence, the outcome is seemingly entirely random. Sometimes a couple of spells foils the defence rightaway; sometimes the same defence resists the same attack plus a whole barrage of other spells. Sometimes there is a long time delay (maybe as long as a minute, but again very variable) before the effect occurs.
Now I'm so confused I don't even know what to ask! The results are so apparently inconsistent I don't even know what the variables are - might the time-delay between castings matter, for example? Is there actually a % chance of success/failure (as with Dispel Magic, for eg.) which it doesn't mention in the spell descs? Perhaps there's some weirdness because they're both Party members???
Can any wise one shed some light on this subject?
Yours,
Boris the Baffled