Agreed (but then again, I still think Polymorph should be banned).
Hmmm, the 12250 gp-per-item limit is kind of harsh when it comes to magic weapons and the classes that rely on them ... a mere +3-equivalent weapon isn't allowed to any of the melee classes? (A +1 Unholy weapon, or a +1 Flaming Shock weapon doesn't seem too rediculous for 10th-level play.) Could we increase this limit to 19000 gp-per-item?
Edit: One more question: do prepared casters get to re-pick their spells prepared before each duel? (If so, we definitely need to enforce the Wizard's known spells as part of his Wealth total.)