So I have this really great healer with -43 AC and Magicbane and a bunch of wishes in his back pocket. Everything's gone great, my ascension kit is perfect, I can take down minotaurs and emerge unscathed.
Magicbane is his only source of magic resistance.
I unwield Magicbane for *one turn* to use a cockatrice corpse on the Wizard of Yendor - "oh, what's the chance he'll pull a touch of death on me?"
Guess what he uses?
Dumplog