The Spatha 'Doomcaller' (+18, 4d23) [+20]
It increases resistances: +25% acid, +25% electricity, +25% fire, +25% dark
and +20% chaos. It modifies damage: x1.5 vs. evil, x1.7 vs. animals, x1.7
vs. plants, x2 vs. humanoids, x3.5 vs. dragons and x1.5 dark brand. It
provides protection from the effects of paralyzation. It gives its wielder
telepathy and see invisible. it burdens its wielder with aggravation. It
is vulnerable to damage by disenchantment.
Level 70, Rarity 25, 9.0 lbs, 100000 Gold.

(EyAngband 0.5.2)