|Base item||Unicorn horn|
|Damage vs. small||1d12|
|Damage vs. large||1d12|
|Weapon skill||Unicorn horn|
Nighthorn will never be randomly generated, but is instead found upon killing Nightmare on the single-level Lawful Quest, a portal to which is found between levels 15 and 19. It will only be found if the manner of Nightmare's death would have otherwise left a corpse - disintegrating her or digesting her will not get you Nighthorn. Note that the Key of Law will still be found, though. The dropped Nighthorn will always be cursed and +0, so be very careful before wielding or applying it!
As a unicorn hornEdit
To neutrals or chaotics, this is likely to be very nearly useless. It provides no benefit from being carried, and the 8d6 blasting damage it will inflict one-fourth of the time it is used makes it difficult, if not impossible, to use as a unicorn horn. For lawful characters who have not yet enchanted a unicorn horn, though, it might be useful.
As a weaponEdit
A mid-game character might find this a useful weapon, as reflection becomes a larger and larger priority as the game goes on. Lawfuls in particular might benefit from having it function as both a unicorn horn and a weapon, since enchanting helps both of these functions. However, even a neutral or chaotic who really needs reflection and is not restricted in the unicorn horn skill might find it handy. Unfortunately, Nighthorn simply does not do enough damage to be a contender in SLASH'EM's later game. It is also two-handed; while it does provide the same property that a shield of reflection provides, it does not provide the same 6 or 7 AC bonus of a well-enchanted shield.