Difference between revisions of "Silence"

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{{spell info}}
  
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'''Silence''' is a level 5 [[Hexes]]/[[Air Magic]] spell which makes reading scrolls, casting spells, using [[god|divine]] abilities, or yelling in the caster's vicinity impossible (this applies to the caster too, of course). The duration and radius of the spell effect is somewhat randomized, but the higher the power of the spell, the more likely it is to be bigger and last longer.
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'''Silence''' is a level 5 [[Hexes]]/[[Air Magic]] spell which creates the Silence effect.
  
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In spite of the flavor text, very [[stealth]]y characters can still go unnoticed when silenced; it merely hits you with a -50 penalty to your stealth score. On the other hand, monsters that are already aware of you will be unable to [[shout]] while silenced, and loud actions performed within the aura will produce no noise. Bear in mind that [[demon]]ic monsters ignore silence effects.
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==Useful==
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Silence creates an aura around the reader, which prevents creatures from doing the following actions:
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*Reading scrolls
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*Casting player spells
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*Using [[god|divine]] abilities
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*[[T|Shouting]]
  
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Using a [[scroll of silence]] creates a similar effect at a power of 25. On average, this will create a starting radius of 4 or 5.
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Monster spells have a unique restriction. Spells or abilities that require spoken words - those with the ''Wizardly'', ''Vocal'', ''Divine'' [[spell slot flags]] - are stopped by Silence. For example, most [[demon]]s use the ''Magical'' spell flag, meaning they cast from innate magical power rather than reciting from a [[spellbook]]. This applies even for player spells like [[Fire Storm]].
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The silence aura also inflicts a -50 [[stealth]] penalty while players are emitting it.
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For the Silence spell, the duration and radius of this aura depends on [[spellpower]], but is slightly randomized. Using a [[scroll of silence]] creates a similar effect at a power of 25 - on average, creating a radius 4-5 aura.
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===Radius===
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The radius starts shrinking with 43 turns to go, and during the last 6 turns only the center tile (you) is silenced. Pre-squared radius is reduced linearly from 37 = 6*6+1, which means that radius is reduced like sqrt(dur) - slowly at large radius, and faster near the end.
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The Silence spell creates an aura with a duration (in turns) of:
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10 + 1d(pow/2) (maximum 100)
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That's at least 10 turns, at most 100. At 50 power (mid-game caster) you'll get an average of 35, which means you'll usually start below maximal radius.
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==Sources==
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*The spell and [[scroll of silence|scroll]]
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*Possible effect from [[Throw Klown Pie]], with a radius of 2.
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*Innate aura from [[silence spectre]]s.
  
 
==Strategy==
 
==Strategy==
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Meanwhile, monster-sourced silence is rather scary, even for melee characters. A player in distress will need a way to leave the area faster than the radiating monster can follow. This can prove a difficult task, given that Mennas, Ereshkigal, and many silencing Pan lords move faster than the player. Sources of escape like [[teleport trap]]s, a [[potion of haste]], [[staircase]]s, or a Blinking ''ability'' (via an [[artefact]]) can be invaluable. Evocable items work while the player is silenced, making them an interesting magical option against monsters capable of using Silence.
 
Meanwhile, monster-sourced silence is rather scary, even for melee characters. A player in distress will need a way to leave the area faster than the radiating monster can follow. This can prove a difficult task, given that Mennas, Ereshkigal, and many silencing Pan lords move faster than the player. Sources of escape like [[teleport trap]]s, a [[potion of haste]], [[staircase]]s, or a Blinking ''ability'' (via an [[artefact]]) can be invaluable. Evocable items work while the player is silenced, making them an interesting magical option against monsters capable of using Silence.
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==Formula==
 
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The radius starts shrinking with 43 turns to go, and during the last 6 turns only the center tile (you) is silenced. Pre-squared radius is reduced linearly from 37 = 6*6+1, which means that radius is reduced like sqrt(dur) (slowly at large radius, and faster near the end).
 
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For reference, cast_silence has:
 
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    you.increase_duration(DUR_SILENCE, 10 + random2avg(pow,2), 100);
 
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That's at least 10 turns, at most 100. At 50 power (mid-game caster) you'll get an average of 35, which means you'll usually start below maximal radius.
 
  
 
==Monster Version==
 
==Monster Version==

Revision as of 20:03, 1 November 2022

Version 0.29: This article may not be up to date for the latest stable release of Crawl.
Silence.png Silence
Level 5
School1 Air
School2 Hexes
Source(s) Book of the Moon
Book of the Senses
Casting noise 4
Spell noise 0
Power Cap 200
Flags Area
Eliminates all sound near the caster. This makes reading scrolls, casting spells, invoking divine abilities, or shouting impossible in the caster's vicinity. The spell's oppressive, unnatural effect will greatly hamper stealth.

Certain monsters have innate magical or special abilities which will still be usable while silenced.

The effect starts out with a radius depending on power, which will then shrink, eventually covering only the caster, before it times out.

Silence is a level 5 Hexes/Air Magic spell which creates the Silence effect.

Useful

Silence creates an aura around the reader, which prevents creatures from doing the following actions:

Monster spells have a unique restriction. Spells or abilities that require spoken words - those with the Wizardly, Vocal, Divine spell slot flags - are stopped by Silence. For example, most demons use the Magical spell flag, meaning they cast from innate magical power rather than reciting from a spellbook. This applies even for player spells like Fire Storm.

The silence aura also inflicts a -50 stealth penalty while players are emitting it.

For the Silence spell, the duration and radius of this aura depends on spellpower, but is slightly randomized. Using a scroll of silence creates a similar effect at a power of 25 - on average, creating a radius 4-5 aura.

Radius

The radius starts shrinking with 43 turns to go, and during the last 6 turns only the center tile (you) is silenced. Pre-squared radius is reduced linearly from 37 = 6*6+1, which means that radius is reduced like sqrt(dur) - slowly at large radius, and faster near the end.

The Silence spell creates an aura with a duration (in turns) of: 

10 + 1d(pow/2) (maximum 100)

That's at least 10 turns, at most 100. At 50 power (mid-game caster) you'll get an average of 35, which means you'll usually start below maximal radius.

Sources

Strategy

Silence is an excellent method for preventing powerful enemy casters from accessing their most dangerous abilities. So long as you are capable of dealing damage without use of spells, you can reduce many powerful uniques and devastating spellcasters to pitiful melee opponents. Just be sure to defeat them before the spell wears down too much, as a fight can rapidly turn ugly during that period at the end of the spell in which only you are silenced.

At the same time, there are many monsters who have unsilenceable special abilities: eg, dragons, draconians, eyeballs, arthropods, Mara.1 Most demons are immune to silence.

If you happen to have any potions of cancellation, consider quaffing one any time you need to end your own silence aura early. It'll eradicate any other status effects you may be enjoying, but it's better than being stuck unable to read a scroll of blinking or teleportation when you most need one. Just remember that it'll have no effect on the silence auras of your enemies.

Meanwhile, monster-sourced silence is rather scary, even for melee characters. A player in distress will need a way to leave the area faster than the radiating monster can follow. This can prove a difficult task, given that Mennas, Ereshkigal, and many silencing Pan lords move faster than the player. Sources of escape like teleport traps, a potion of haste, staircases, or a Blinking ability (via an artefact) can be invaluable. Evocable items work while the player is silenced, making them an interesting magical option against monsters capable of using Silence.

Monster Version

The following enemies cast Silence:

The following enemies may be able to cast Silence, depending on their spell set:

The following enemy inherently radiates Silence:

Short of letting the spell run its course, only killing or otherwise removing the silencing monster removes the effect. Paralysis, confusion and sleep, etc. have no effect. In the case of silent spectres, their silence aura has an effect larger than your LOS, so you will have to resort to non-silenceable means of fighting them.

History

Footnotes

1By outward appearance, these abilities might look like spells and, in fact, are listed in this wiki as "Spells." Nevertheless, any spell denoted by a "Natural flag", "Magical flag", or "Demonic flag" is not affected by silence. Exception: any spell that also has a "No Silent flag" is always affected by silence. When in doubt, consult the specific monster's spell details to be certain of its susceptibility: eg, Arachne, while a spider, nevertheless casts wizard spells and is affected by silence; Ushabtiu, while constructs, have their Warning Cry (and only their Warning Cry) affected by silence.

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