Bah. That doesn't slay demons or have extra blows. ;-)

Seriously though, I have seen standard ego Mace of Disruption of Fury (5d8) (~+15,~+25) (+2) which was pretty insane against undead and made even without slays extremely high damage (dwarf priest, so blows got from four to six).

While this randart is extremely good weapon it isn't unbalanced because of the extreme rarity, but weapons of Fury can be rather insane (they have +20 to dam base according to ego-items.txt), and they are nowhere near as rare as this kind of randarts.

Or should I say "were insane". 3.4 has tval/sval values commented out which I think means that Fury is already removed.

Yes fury is removed. A mace of disruption of extra attacks will munch through undead though.

my hT Warrior just got drop:

s) the Long Sword of Galin (2d5) (+7,+11) <+11>
Dropped by a Greater titan at 3350 feet (level 67).

+11 wisdom, speed.
Cannot be harmed by acid, electricity, fire, cold.
Blessed by the gods.

Combat info:
6.2 blows/round.
With +0 STR and +1 DEX you would get 6.5 blows
Average damage/round: 386.2.

That would be ideal weapon for any priest. Oh, and number of blows comes from my armor, +1 to attack speed. :)

From the randart set of a character who met an untimely end (and never found a single artifact, let alone this beauty):

the Mithril Shield of Valach [16,+44] <+2>
------------------------------------------
+2 strength, intelligence, dexterity, attack speed.
Provides immunity to acid, lightning, cold.
Provides resistance to fire, light, dark, sound, disenchantment.
Provides protection from blindness, confusion.
Cannot be harmed by acid, electricity, fire, cold.
Sustains strength, intelligence.
Slows your metabolism. Speeds regeneration. Sustains your life force.

When activated, it raises your constitution at the expense of a random
attribute.
Takes 246 to 420 turns to recharge.


Min Level 100, Max Level 127, Generation chance 1, Power 826, 10.0 lbs
Based on Bladeturner.

From FA, just for the activation:

Look out, Morgoth, my supply of cursed armour is now unlimited!

Rings in FA are, to my mind, randarts...

c) a Steel Ring of Basic Resistance <+6>
Dropped by an Uruk in Amon dh Level 16.
+6 strength, +6 dexterity, +6 constitution.
Makes you vulnerable to fire(35%).

Basic RESISTANCE???

Indeed :)

They are basically constructed like randarts, to a template. I'm guessing that one started out with some RFire, picked up some bonuses, picked up a vunerability (to Fire...), and then removed the contradictory resistance.

Just reading the tin isn't enough :)

And it probably have about 8 of various curses also, or it is too good for level 16.

so close...
 

My hT Warrior looted 'Crown' vault:

s) the Amulet 'Dolande' <+5>
Found lying on the floor in a vault at 3850 feet (level 77).

+5 dexterity, stealth.
Provides resistance to lightning, cold, light.
Cannot be harmed by acid, electricity, fire, cold.
Sustains strength, dexterity.
Sustains your life force.

When aimed, it creates random and unpredictable effects.
Takes 262 to 291 turns to recharge at your current speed.
Your chance of success is 79.4%

Bah, that amulet misspells my nickname :)