That was not a rhetorical statement, by the way, I genuinely did hope that it wasn't.

And spells don't automatically win against anyone without specific magic resistance - that would make all mage characters more powerful than the non-mage ones, and that is not the case. If a spellcasting mook tosses lightning at you, you dodge it. If he curses you with fear, you shake it off and break his neck. That is, if they even manage to raise their wands before disable their hands, Starship Troopers style. Just like any major badass on the enemy side is not gonna be paralyzed by your poison.

You may have underestimated the level your characters are at, but I'm sure we'll all get there eventually.