Amulet of unchanging
An amulet of unchanging is a type of amulet that appears in NetHack.
Contents
Generation
There is a 4.5% chance that a randomly-generated amulet will be an amulet of unchanging, making it the least generated amulet.
Description
Wearing an amulet of unchanging prevents polymorphing and other means of changing form, including sliming but not stoning; if you put one on while suffering from sliming, it is aborted.
If you die while polymorphed (which would normally return you to your normal form) and are wearing unchanging, you will instead die as normal in most cases. The exception are as follows:
- While in the form of a wood or leather golem, be hit and rotted away by a brown pudding bite.
- While in the form of an iron golem, trigger a rust trap, make contact with a pool, or be hit by a rust monster attack.
- While in the form of an undead monster, pray to your god.
In the above circumstances, you will be returned to normal even if you are wearing the amulet.
If you are polymorphed into a metallivore, eating the amulet and successfully absorbing its magic will "un-change" you and revert you to your normal form.
Strategy
If discovered early, the amulet of unchanging can be a good substitute for magic resistance in areas such as the Gnomish Mines beyond Minetown, where poolymorph traps are a major obstacle. If you are riding and do not have magic resistance, an amulet of unchanging will also protect your steed from polymorph traps.
Amulets of unchanging are often used to remain in a particular (usually powerful) polymorph form, especially if you lack a reusable source of polymorhp, with the risk that most deaths are permanent as normal. It can also become a literal life-saver if you accidentally genocide your role or race while polymorphed.
Identification
The amulet of unchanging is most reliably identified by wearing a given amulet while eating a mimic corpse: the mimicry effect to turn into a pile of gold (or an orange if hallucinating) will not occur if the amulet is unchanging, and otherwise will not affect armor like most forms of polymorph, though you will dismount automatically from your steed.
For polyselfless, vegan and/or vegetarian conducts, the best alternative is to polymorph yourself while wearing the suspected amulet and a ring of polymorph control, which allows you to specify a safe form if you do polymorph. If you intend to use a polytrap for this purpose, you must remove any source of magic resistance as well. If the amulet is unchanging, the polymorph trap will not disappear and you will receive the standard message for a blocked polymorph ("You feel momentarily different").
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.
As of commit 43af05a, if you improvise with a musical instrument and are not deaf, you will produce "familiar" music if you have unchanging, providing a way to identify the amulet. The blessed potion of polymorph will also give a controlled polymorph when quaffed.Variants
UnNetHack
In UnNetHack, amulets of unchanging cannot be polymorphed.
See also
This page is based on a spoiler by Dylan O'Donnell. The original license is:
Redistribution, copying, and editing of these spoilers, with or without modification, are permitted provided that the following conditions are met:
- The original contributors to any spoiler must continue to be credited.
- Any modifications to the spoiler must be acknowledged and credited.
