Today I have witnessed something weird, and I'm not sure if anyone encountered this before. I was playing IVANT, I lost a leg and an arm, I drank from a fountain and got a bunch of friendly spiders and a friendly dark drog, and it's probably that I was in bad condition.
Anyway, I prayed to Valpurus, the only god I knew, after reading his holy book for maybe twice before it dissappeared. Needless to say, my alignment with him was pretty low. I was expecting him to smite me.
Instead, he gave me a valpurium arm.
(this have me AStr of 100+ and also caused the danger level to skyrocket, think kamikaze dwarves in UT)
I did some tests in wizard mode later with detached limbs and praying to Valpurus, both in IVAN 0.50 and IVANT, and I was unable to reproduce the effect. I got pounded every damn time I prayed with alignment below 1000.
But, in any case, my little tip goes: If all else fail and you miss a limb, try praying to Valpurus.