Legildur said:KD, you raise some pretty good points there. Certainly something to think about. but I'm pretty sure that the sorceror doesn't have the Eschew Materials feat and so is reliant on the spell component pouch.
Whether he has Eschew Materials or not is mostly irrelevant to the combat.
What is relevant is completely holding off their spell caster while your own spell casters do Greater Dispel Magics (a lot of confused PCs might be back in the fight), Heals or Mass Heals (bye bye Confusion and damage), Dispel Chaos, Dispel Evil, Black Tentacles, even a Globe of Invulnerability would stop Confusion, etc.
There are a lot of healing spells, combat control spells, dispels, and other useful spells that could easily change the course of this battle for the better. Especially if your side has spells and their side does not.
Plus, you could instead of putting the Chaos Diamond away or throwing it away, just drop your weapon, use your 3 attacks per round in an attempt to grapple the spell caster 3 times and if successful with 2 of them, you can have him grappled and pinned (and have your free hand over his mouth). Grappling only requires one free hand since it is a touch attack. So, the other hand can continue to hold onto the Chaos Diamond.
But, you are not grappling him to do damage. You are grappling him to stop him from casting spells. And, you have 3 attempts of which 1 successful will prevent most spells and 2 successful would prevent all spells (but not all spell like abilities or supernatural abilities).