Item damage. It's not fun when you have to grind and there is no repair out there. Consider either negating it entirely or putting a pumpkin headed Efreet out there so I can repair my item damage before it goes permanent.
And, no- I can not bind the two items that got perm damaged. They're on loan.... I took my baby Bard out there once during the whole event and tried to repair in a timely fashion- got 1 pt. damage on a borrowed Bloodstone and more than that on a Flaming Khop. of G. Undead Bane.
That's the risk you take when you hit and get hit, but it certainly wouldn't kill anyone to have a 'Freet to repair by the turn ins.
Losses were just as annoying on my Clonk- she's got workable AC and I wasn't doing a lot of meleeing, but I lost an Essence of Despair (!), one mnah-mnah (a Major!) and two res scrolls (the more expensive Half-raise ones). That's lame to lose stuff like that on a fun event.