Not problems per see but I would recommend to keep percentage to low level ( 25% or so ). They contain spellcaster's memorized spells but sometimes it is misleading as some casters just force cast spells ( example is orcish mage, his spellbook didn't contain single spell cast against my party ).
That is another thing.
Those spellbooks are generic things. They have no connection to the caster that drops them. At least not the spells they contain.
I would definitely not recommend this with
SCS, as the spellbooks on that mod are different from the regular spells. Same is true with the Spell_rev mod, and was it Rogue Rebalance or the aTweaks, either way, they have enemies with special hostile only spells.
It should also be noted that: Roxanne doesn't use the
SCS !!!
Dimention door, op my ... try demons that align themselves with the caster automatically ... boosted demons with 200+ hitpoint.
Edited by The Imp, 24 April 2018 - 10:47 PM.
Yep, Jarno Mikkola. my Mega Mod FAQ. Use of the BWS, and how to use it(scroll down that post a bit).
OK, desert dweller, welcome to the sanity, you are free to search for the limit, it's out there, we drew it in the sand. Ouh, actually it was still snow then.. but anyways.