Has anyone tried a 3E/3.5E campaign where magic cannot directly affect people against their will? So no Fireballs, no Lightning Bolts, not even Magic Missile. Nor Charm Person nor Sleep. But divinations, buffs, and summons are fine.
I'm not sure I see the point. Are you going for a world were magic is more subtle than default, or is this an attempt at balance?
I don't think that would be much fun for the caster. They're basically being turned into NPCs.
It wouldn't suit 3rd Edition balance either.
Well obviously. Spellcasters would be much weaker in fights, of course, so fighter-types would come to the fore, but is that such a bad thing? And spellcasters would still have their areas of expertise.
It's not a rules fix if it's done purely for flavor.It's a bad thing at low-levels. High-level spellcasters dominate the game, but low-level casters do not. If you're going to apply a rules fix, it should be a fix.
Also, things like Glitterdust, Hold Monster and Charm Person are part of a wizard's expertise.