|Base item||shield of reflection|
|Base price||5000 zm|
Mirrorbright is a neutral artifact shield of reflection specific to SLASH'EM. It is the first sacrifice gift for healers. When worn, in addition to the usual reflection, it provides hallucination resistance, much in the manner of Grayswandir.
It is also implemented in dNethack as a chaotic bronze roundshield that can be enchanted to +7, and #invoking toggles conflict. (it retains the reflection and hallucination resistance)
The main virtue of Mirrorbright is simply that it is a shield of reflection that neutrals can receive via sacrifice. This can provide a much-needed property early in the game and/or save a character a wish. However, it is certainly not worth an artifact wish by itself; wish for a normal shield of reflection instead. Hallucination resistance is only marginally useful in the early game, and is almost completely superseded by a well-enchanted unicorn horn.
Unfortunately, Mirrorbright actually poses something of a problem for healers. It is their first sacrifice gift; as such, it is rather unhelpful. Reflection is very useful, but in general, healers won't want to get it from a shield of reflection, as it makes spellcasting - which many healers will rely on - almost useless. Additionally, the guaranteed gift of Mirrorbright makes it far more difficult for healers to acquire an artifact weapon, which only worsens their generally low hitting power.