well, i went a full game using rods of treasure detection and magic mapping, before i realized that i had been using an Arkenstone as my light for about 80 dungeon levels.

Good going continues. First an early potion of Experience (6-9 level) gave me five levels in one go and few levels deeper Mim was nice enough to plug some of the very few resistance holes that the wonderful ring didn't.

Jewel of Shelor <+2, +1, +3>
Dropped by Mim, Betrayer of Turin at 1600 feet (level 32)

+2 intelligence
+1 dexterity
+3 stealth
Provides resistance to Acid, Sound, Disenchantment.
Provides protection from fear, blindness.
Sustains constitution.
Speeds regeneration.

Large Metal Shield of Ithon [12,+16] <+3>:
Dropped by Mim, Betrayer of Turin at 1600 feet (level 32)

+3 wisdom
Provides immunity to Acid.
Provides resistance to Lightning, Fire, Dark, Sound.
Cannot be harmed by Acid.
Slows your metabolism.

Character level 31, dungeon level 32. 2 immunities, +4 speed from black market boots, all resistances except poison, chaos, stun. All signs point to getting one-shotted by a drolem very soon...

You are no longer resistant to poison.
The 6-headed hydra (offscreen) breathes poison.
You are poisoned!
The 6-headed hydra (offscreen) breathes poison.
You die.

Well timed, well coordinated attack by these hydras, I give them that.

dude, ALWAYS double-cast Resistance, it stacks in duration.

An artifact of Blah
 

s) the Cutlass 'Narthmo' (1d8) (+6,+9)
Dropped by Angamaitë of Umbar at 1150 feet (level 23)

Cannot be harmed by Acid.

Combat info:
1.0 blow/round.
With +8 STR and +0 DEX you would attack a bit faster
With +11 STR and +0 DEX you would get 1.1 blows
With +4 STR and +2 DEX you would attack a bit faster
With +8 STR and +2 DEX you would get 1.1 blows
With +0 STR and +9 DEX you would attack a bit faster
With +4 STR and +9 DEX you would get 1.1 blows
With +0 STR and +12 DEX you would get 1.1 blows
Average damage/round: 15.7.

That's it. That's the whole artifact

Meh. But the cutlass has a great name anyway! :)

If I google Narthmo, the second hit is this thread :)

Speaking of the king of named artifacts:

u) the Bastard Sword 'Moron' (3d4) (+10,+15) <+3, +2>
Dropped by Scatha the Worm at 2700 feet (level 54)

+3 wisdom.
+2 speed.
Slays undead (powerfully), trolls, evil creatures.
Branded with weak lightning, acid.
Provides resistance to Fire, Dark, Chaos, Disenchantment.
Cannot be harmed by Acid.
Blessed by the gods (combat bonuses for holy casters).

Combat info:
5.5 blows/round.
With +1 STR and +0 DEX you would get 5.8 blows
Average damage/round: 412.9 vs undead, 311.3 vs trolls and
creatures not resistant to acid, 260.8 vs creatures not resistant
to lightning and evil creatures, and 209.7 vs. others.

Theres a Moron in every other randart set :) Another common one is Dildo.

a) the Dagger 'Barfing' (1d4) (+16,+22) <+2>
Found lying on the floor at 1300 feet (level 26)

+2 constitution.
+2 stealth.
Slays dragons (powerfully), undead, animals, evil creatures.
Provides resistance to Acid.
Cannot be harmed by Acid.

When activated, it casts a bolt of fire dealing 9d8 damage for an
average of 40.0 damage.
Takes 57 to 63 turns to recharge at your current speed.
Your chance of success is 53.5%

Combat info:
3.4 blows/round.
With +0 STR and +2 DEX you would get 3.8 blows
Average damage/round: 196.7 vs dragons, 177.1 vs undead, 167.5 vs
animals and evil creatures, and 157.8 vs. others.
Average thrown damage: 252.3 vs dragons, 151.4 vs undead, 100.9 vs
animals and evil creatures, and 50.4 vs. others.

lol Barfing, so funny