Whoever named this randart needs to lay off the Orchish Liquor...

[wxman]

the Hard Leather Cap of Frost [2,+13]
     Dropped by Ulfang the Black at 2050 feet (level 41)
     
     Provides immunity to Lightning.
     Cannot be harmed by Acid.

[MattB]

Love it!
:-D

[mrfy]

this one also:

the Beaked Axe of Curing (2d6) (+10,+6) [+7] <+3, +4>
Dropped by Ar-Pharazon the Golden at 2700 feet (level 54)

+3 strength.
+4 wisdom.
Slays undead (powerfully), dragons, giants, trolls.
Provides immunity to Lightning.
Provides resistance to Fire.
Cannot be harmed by Acid, Fire.
Sustains wisdom.
Blessed by the gods (combat bonuses for holy casters).

When activated, it deals 60 damage to all undead creatures that
you can see.
Takes 138 to 153 turns to recharge at your current speed.
Your chance of success is 95.6%

Combat info:
4.0 blows/round.
This weapon may benefit from one or more off-weapon brands or
slays.
Average damage/round: 280.4 vs undead, 214 vs dragons, giants, and
trolls, 180.4 vs creatures not resistant to cold, and 147.2 vs.
others.

Not bad, but I don't see the curing.

[Nick]

Not bad, but I don't see the curing.

Well, in some games heal hurts undead, so maybe?

[whartung]

Well, in some games heal hurts undead, so maybe?

If you use it enough, it cures the undead of their "undead-ness" by making them dead.

Just be sure to yell "MORE CURING!" as you charge in to the vault...

[EpicMan]

It cures the rooms of their undead, dragons, giants, trolls, etc