Light (monster class)
The light monster class contains monsters represented by y:
Characteristics
All lights will explode in your direction if you are adjacent, permanently destroying the light; this causes a status affliction and creates noise that can wake nearby monsters, but does no damage. As lights cannot see invisible, if you are invisible or displaced, they may explode at an empty square with no effect on you.
Reading a scroll of light while confused has a 1⁄5 chance of summoning a light monster if they are not genocided.
The following information pertains to an upcoming version (NetHack 3.7.0). If this version is now released, please verify that it is still accurate, then update the page to incorporate this information.
Reading the scroll while confused now instead summons multiple tame cancelled lights. An uncursed scroll will summon 3–4 yellow lights; a blessed scroll will summon 5–6 yellow lights; and a cursed scroll will summon 3–4 black lights. Nothing will be summoned if the appropriate type of light is genocided.Body parts
Lights have a special hard-coded set of body parts, with "hand" replaced with "ray", "handed" replaced with "rayed", and all other body parts replaced with "beam".[1]
Variants
Many variants add new monsters to the light monster class, such as the will o' wisp.
