Difference between revisions of "Ring of protection from shape changers"

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{{ring
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{{ring|name=protection from shape changers|cost=100}}
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The '''ring of protection from shape changers''', cost 100, has a number of effects (in addition to the normal [[ring hunger]]):
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A '''ring of protection from shape changers''' is a type of [[ring]] that appears in ''[[NetHack]]''.
  
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*[[Chameleon]]s, [[mimic]]s, [[doppelganger]]s, [[sandestin]]s and [[vampire]]s appear in their normal form.
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==Generation==
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**Polymorphing them will be permanent. You need the ring to improve your pet shapeshifter at a [[polymorph trap]].
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In addition to random generation, rings of protection from shape changers can be sold in general [[store]]s and jewelry shops.
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*[[Werecreature]]s appear in [[human (monster attribute)|human]] form and thus cannot infect you with [[lycanthropy]]. They are also prevented from summoning help. However, if you have lycanthropy, wearing this ring will not prevent you from transforming.
 
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*Monsters with a [[digestion]] attack will not [[polymorph]] when swallowing a shapechanger whole. As a result, this ring is very useful to anyone who wants pet purple worms but cannot (or doesn't want to) [[genocide]] [[chameleon]]s or [[doppelganger]]s.  It will not, however, protect pets that eat the corpses of these monsters from polymorphing.
 
  
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Dropping a ring of protection from shape changers into a [[sink]] produces the message '''''"The sink looks nothing like a fountain."'''''
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[[Wizard]]s may have a ring of protection from shape changers as one of the two random rings in their starting inventory.{{refsrc|src/u_init.c|165|nethack=3.6.7}}
  
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A non-cursed 100 zorkmid ring can be identified as protection from shape changers by wearing it in a [[shop]], on the top level of [[Sokoban]], the rogue quest, or anywhere near known [[mimics]]. A ring of protection from shape changers will uncloak the mimics.
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==Description==
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Wearing a ring of protection from shape changers causes most [[shape changer]]s and other similar monsters to lose their shifting ability:
  
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Wooden or metal rings of protection from shape changers can be [[Eating jewelry|eaten]] to acquire protection from shape changers intrinsically.
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* [[Chameleon]]s, [[doppelganger]]s, [[sandestin]]s and [[vampire]]s will appear in their base form; they are vulnerable to being [[polymorph]]ed completely into another monster, and may suffer [[system shock]] as with polymorphing other monsters.
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* [[Werecreature]]s will similarly appear in their [[human (monster attribute)|human]] form a majority of the time, and are still capable of shifting to animal form, but will shift back to human form on their next turn{{refsrc|src/mhitu.c|600|nethack=3.6.7|comment=chance of changing to animal form when attacking}}{{refsrc|src/were.c|38|nethack=3.6.7|comment=changing back to human form always occurs if protection from shape changers is active}} - they also cannot summon help or infect you with [[lycanthropy]].{{refsrc|src/were.c|137|nethack=3.6.7|comment=summoning help checks for protection from shape changers}}{{refsrc|src/mhitu.c|600|nethack=3.6.7|comment=chance of changing to animal form when attacking}}{{refsrc|src/mhitu.c|1310|nethack=3.6.7|comment=lycanthropy cannot occur with with protection from shape changers active}}
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* [[Mimic]]s are de-cloaked and cannot disguise themselves.
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* Monsters with a [[digestion]] attack will not polymorph when swallowing a shape changer whole.
  
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{{nethack-343}}
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[[Eating jewelry|Eating the ring]] has a {{frac|3}} chance of conveying [[protection from shape changers]] as an intrinsic.
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==Strategy==
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An early ring of protection from shape changers can be valuable against werecreatures: though they can still assume their animal forms, they are reliably prevented from infecting you or summoning help and possibly surrounding you, which can be especially dangerous with [[werewolves]]. The ring will also reliably prevent other shape changers from chameleons and doppelgangers from shifting, which prevents them taking on out-of-depth forms like the [[arch-lich]] that can end your game in an instant.
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Pet keepers may be particularly interested in this ring: pet [[vampire]]s have a tendency to shift to [[vampire bat]] or [[fog cloud]] form and drop any armor and other items you have given them, and [[vampire lord]]s can break torso armor by shapeshifting into [[wolves]]. The ring of protection from shape changers will keep them in their humanoid form, which is also their best one for combat before factoring in armor, though they cannot revive from their other forms if killed. Pets with digestion attacks such as [[purple worm]]s will also not polymorph if they swallow a chameleon or doppelganger whole while you are wearing the ring (though they will still polymorph from eating their corpses).
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A [[Rogue]] embarking on [[Rogue quest|their Quest]] will likely want an identified ring to trivialize hunting down the many chameleons on each floor.
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{{upcoming|3.7.0|Pets will no longer eat shapeshifter corpses unless they are starving or on the verge of untaming.}}
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===Identification===
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{{main|Price identification}}
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A non-cursed 100[[zm]] ring can be identified as protection from shape changers by wearing it around known shapeshifters such as mimics, e.g. in a [[shop]] or on the top level of [[Sokoban]] - the ring will uncloak the mimics immediately.
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==History==
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The ring of protection from shape-changers appears in Hack for PDP-11, a variant of [[Jay Fenlason's Hack]], and is included in the initial item list for [[Hack 1.0]].
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==Messages==
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{{message|The sink looks nothing like a fountain.|You dropped a ring of protection from shape changers into a [[sink]].}}
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==Variants==
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===SLASH'EM===
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In [[SLASH'EM]], changes to [[Polymorph#SLASH'EM|polymorph mechanics]] and the introduction of [[Werecreature (SLASH'EM)|new werecreatures]] make the ring of protection from shape changers much more valuable. Shapeshifted monsters that are killed return to their base form, and both werecreatures and other shape changers like chameleons are wont to shapeshifter again before you can kill them in their base form - the ring stops them from changing shape and ensures that killing them will stick.
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===notdNetHack===
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In [[notdNetHack]], [[Yuki-onna (starting race)|yuki-onna]] [[Madwomen]] start the game with a worn ring of protection from shape changers: the ring (or any other source of the property) blocks the ability of yuki-onna characters to polymorph into [[snow cloud]]s, and the ring cannot be removed unless the Madwoman gets rid of her [[straitjacket]].
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==References==
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<references/>
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{{nethack-367}}
 
[[Category:Rings|Protection from shape changers]]
 
[[Category:Rings|Protection from shape changers]]

Latest revision as of 19:16, 12 March 2024

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Name protection from shape changers
Appearance random
Base price 100 zm
Weight 3

A ring of protection from shape changers is a type of ring that appears in NetHack.

Generation

In addition to random generation, rings of protection from shape changers can be sold in general stores and jewelry shops.

Wizards may have a ring of protection from shape changers as one of the two random rings in their starting inventory.[1]

Description

Wearing a ring of protection from shape changers causes most shape changers and other similar monsters to lose their shifting ability:

  • Chameleons, doppelgangers, sandestins and vampires will appear in their base form; they are vulnerable to being polymorphed completely into another monster, and may suffer system shock as with polymorphing other monsters.
  • Werecreatures will similarly appear in their human form a majority of the time, and are still capable of shifting to animal form, but will shift back to human form on their next turn[2][3] - they also cannot summon help or infect you with lycanthropy.[4][5][6]
  • Mimics are de-cloaked and cannot disguise themselves.
  • Monsters with a digestion attack will not polymorph when swallowing a shape changer whole.

Eating the ring has a 1⁄3 chance of conveying protection from shape changers as an intrinsic.

Strategy

An early ring of protection from shape changers can be valuable against werecreatures: though they can still assume their animal forms, they are reliably prevented from infecting you or summoning help and possibly surrounding you, which can be especially dangerous with werewolves. The ring will also reliably prevent other shape changers from chameleons and doppelgangers from shifting, which prevents them taking on out-of-depth forms like the arch-lich that can end your game in an instant.

Pet keepers may be particularly interested in this ring: pet vampires have a tendency to shift to vampire bat or fog cloud form and drop any armor and other items you have given them, and vampire lords can break torso armor by shapeshifting into wolves. The ring of protection from shape changers will keep them in their humanoid form, which is also their best one for combat before factoring in armor, though they cannot revive from their other forms if killed. Pets with digestion attacks such as purple worms will also not polymorph if they swallow a chameleon or doppelganger whole while you are wearing the ring (though they will still polymorph from eating their corpses).

A Rogue embarking on their Quest will likely want an identified ring to trivialize hunting down the many chameleons on each floor.

The following information pertains to an upcoming version (3.7.0). If this version is now released, please verify that it is still accurate, then update the page to incorporate this information.

Pets will no longer eat shapeshifter corpses unless they are starving or on the verge of untaming.

Identification

Main article: Price identification

A non-cursed 100zm ring can be identified as protection from shape changers by wearing it around known shapeshifters such as mimics, e.g. in a shop or on the top level of Sokoban - the ring will uncloak the mimics immediately.

History

The ring of protection from shape-changers appears in Hack for PDP-11, a variant of Jay Fenlason's Hack, and is included in the initial item list for Hack 1.0.

Messages

The sink looks nothing like a fountain.
You dropped a ring of protection from shape changers into a sink.

Variants

SLASH'EM

In SLASH'EM, changes to polymorph mechanics and the introduction of new werecreatures make the ring of protection from shape changers much more valuable. Shapeshifted monsters that are killed return to their base form, and both werecreatures and other shape changers like chameleons are wont to shapeshifter again before you can kill them in their base form - the ring stops them from changing shape and ensures that killing them will stick.

notdNetHack

In notdNetHack, yuki-onna Madwomen start the game with a worn ring of protection from shape changers: the ring (or any other source of the property) blocks the ability of yuki-onna characters to polymorph into snow clouds, and the ring cannot be removed unless the Madwoman gets rid of her straitjacket.

References

  1. ↑ src/u_init.c in NetHack 3.6.7, line 165
  2. ↑ src/mhitu.c in NetHack 3.6.7, line 600: chance of changing to animal form when attacking
  3. ↑ src/were.c in NetHack 3.6.7, line 38: changing back to human form always occurs if protection from shape changers is active
  4. ↑ src/were.c in NetHack 3.6.7, line 137: summoning help checks for protection from shape changers
  5. ↑ src/mhitu.c in NetHack 3.6.7, line 600: chance of changing to animal form when attacking
  6. ↑ src/mhitu.c in NetHack 3.6.7, line 1310: lycanthropy cannot occur with with protection from shape changers active
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