Difference between revisions of "Willpower"

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(Resistible Enchantments)
(Updated for 0.13)
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'''Magic resistance''' ('''MR''') is the ability to resist hostile enchantments such as [[Slow]], [[Confusion]], [[Banishment]] to the Abyss and [[Disintegration]].
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'''Magic resistance''' ('''MR''') is the ability to resist hostile enchantments such as [[slow]], [[confusion]], [[banishment]] to [[the Abyss]] and [[disintegration]].
  
 
The higher a being's MR, the less likely that it will be affected by an enchantment cast on it. Beings that are magical in some way (such as elves or sirens), magic-users, and those that are non-[[natural]] tend to have higher MR than other creatures.
 
The higher a being's MR, the less likely that it will be affected by an enchantment cast on it. Beings that are magical in some way (such as elves or sirens), magic-users, and those that are non-[[natural]] tend to have higher MR than other creatures.
  
Monster MR is partly based on [[hit dice]], so monsters with high hit dice tend to be highly resistant to magic. Most monsters with one hit die have a 50% chance to fail to resist outright, in addition to the normal saving throw. Finally, some monsters are outright immune to magical enchantments – for instance, most [[nonliving]] creatures.
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Monster MR is partly based on [[hit dice]], so monsters with high hit dice tend to be highly resistant to magic. Most monsters with one hit die have a 50% chance to fail to resist outright, in addition to the normal saving throw. Finally, some monsters are outright immune to magical enchantments - for instance, most [[nonliving]] creatures.
  
 
==Resistible Enchantments==
 
==Resistible Enchantments==
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*[[Enslavement]], [[Wand of enslavement]], [[Crusade card]]
 
*[[Enslavement]], [[Wand of enslavement]], [[Crusade card]]
 
*[[Banishment#Monster banishment|Banishment]], [[Damnation card]]
 
*[[Banishment#Monster banishment|Banishment]], [[Damnation card]]
*[[Vitriol card]]
 
 
*[[Yred#Enslave_soul|Enslave Soul]]
 
*[[Yred#Enslave_soul|Enslave Soul]]
 
*[[Agony]]
 
*[[Agony]]
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==Resistance Descriptions==
 
==Resistance Descriptions==
Neither the player's nor monster's MR is never given explicitly, but a rough suggestion of how magic resistant they are can be seen by pressing the [[@]] key for the player, and e'''x'''amining a monster's description.
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Neither the player's nor monster's MR is ever given explicitly, but a rough suggestion of how magic resistant they are can be seen by pressing the [[@]] key for the player, and e'''x'''amining a monster's description.
  
 
Magic resistance adjectives are as follows:
 
Magic resistance adjectives are as follows:
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|almost entirely||>=300  
 
|almost entirely||>=300  
 
|}
 
|}
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As a practical matter, a player who is "extraordinarily resistant" should be able to usually resist the most dangerous enchanters in the game (such as [[Kirke]], [[deep elf demonologist]]s, and even [[ancient lich]]es). More MR will reduce the likelihood of these spells landing even further, but the gains become significantly less important beyond this point.
  
 
===Player Resistance===
 
===Player Resistance===
 
As a practical matter, "extraordinarily resistant" is enough to completely resist most dangerous enchanters in the game (such as [[Kirke]], [[deep elf demonologist]]s, and even [[ancient lich]]es).
 
 
 
Player resistance is determined as below:
 
Player resistance is determined as below:
  
Experience level * racial multiplier plus the following:
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Experience level × racial multiplier, plus the following:
*randart MR
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*Randart MR
*30 for each armor of magic resistance
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*30 for each [[ego|armor of magic resistance]]
*40 for each ring of magic resistance
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*40 for each [[ring of protection from magic]]
*level of MR mutation * 30  
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*Ranks of the [[Good mutations#Magic Resistance|MR mutation]] × 30  
*50 if in lichform
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*50 when [[lichform]]
*70 when using Trog's hand
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*70 when using [[Trog]]'s Hand
*Everything is divided by two, if the player is under the effect of a [[scroll of vulnerability]]
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*Everything is then divided by two if the player is under the effect of a [[scroll of vulnerability]] or the attack of a [[phantasmal warrior]]
  
 
Racial multipliers are as follows:
 
Racial multipliers are as follows:
  
*7: spriggan
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*7: [[Spriggan]]
*6: purple draconian, deep dwarf, felid
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*6: Purple [[draconian]], [[deep dwarf]], [[felid]]
*5: naga, mummy
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*5: [[Naga]], [[mummy]]
*4: elves, mountain dwarf, demigod, vampire, demonspawn, ogre
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*4: [[High elves]], [[deep elves]], [[demigod]], [[vampire]], [[demonspawn]], [[ogre]]
*3: humans and every other race
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*3: [[Human]]s and every other race
  
 
==History==
 
==History==
In [[0.13]], [[Phantasmal warrior]]s will apply the effect of a scroll of vulnerability with their melee attacks. Also, [[Blink Other]] will ignore MR.
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Prior to [[0.13]], [[Blink Other]] was subject to magic resistance.
  
 
[[Category:Game_mechanics]]
 
[[Category:Game_mechanics]]
 
[[Category:Crystal Ball Articles]]
 
[[Category:Crystal Ball Articles]]

Revision as of 22:01, 6 November 2013

Version 0.13: This article may not be up to date for the latest stable release of Crawl.

Magic resistance (MR) is the ability to resist hostile enchantments such as slow, confusion, banishment to the Abyss and disintegration.

The higher a being's MR, the less likely that it will be affected by an enchantment cast on it. Beings that are magical in some way (such as elves or sirens), magic-users, and those that are non-natural tend to have higher MR than other creatures.

Monster MR is partly based on hit dice, so monsters with high hit dice tend to be highly resistant to magic. Most monsters with one hit die have a 50% chance to fail to resist outright, in addition to the normal saving throw. Finally, some monsters are outright immune to magical enchantments - for instance, most nonliving creatures.

Resistible Enchantments

Some of these effects can come from potions, weapon brands, clouds, or spells that are not considered enchantments.

Notes

  • Many of these enchantments can be resisted via other means. For instance, life protection counters the effects of Agony (but not the Pain spell). Undead, nonliving, and plant monsters cannot sleep.
  • Polymorph will not be resisted by (very) ugly things, which will always change color. Shapeshifters can only resist it if they are currently in the form of something immune to magic.
  • Effects coming from melee weapons of chaos don't check MR, but those coming from ranged weapons of chaos do.

Saving throws

Resisting an enchantment is dependent on the resisting creature's MR and the enchantment power (which is a function of the spell power) of the enchantment it is resisting. The formula is:

If 1d100 + 1d101 is less than 102 + MR - the enchantment's power, the enchantment is resisted.

This is sometimes referred to as a "saving throw", after the die-based resistance system employed in Dungeons & Dragons.

Magic resistance saving throw.png

Enchantment power is your spell's power multiplied by a modifier (usually 1) and then passed through a stepdown function which halves your spell power every 30 points above 40. Agony, Pain, Slow, Corona, Teleport Other and all the mass enchantments have modifiers greater than 1. Ensorcelled Hibernation has an additional stepdown.

Resistance Descriptions

Neither the player's nor monster's MR is ever given explicitly, but a rough suggestion of how magic resistant they are can be seen by pressing the @ key for the player, and examining a monster's description.

Magic resistance adjectives are as follows:

MR description MR number
not resistant <10
slightly 10-29
somewhat 30-59
quite 60-89
very 90-119
extremely 120-149
extraordinarily 150-189
incredibly 190-239
uncannily 240-299
almost entirely >=300

As a practical matter, a player who is "extraordinarily resistant" should be able to usually resist the most dangerous enchanters in the game (such as Kirke, deep elf demonologists, and even ancient liches). More MR will reduce the likelihood of these spells landing even further, but the gains become significantly less important beyond this point.

Player Resistance

Player resistance is determined as below:

Experience level × racial multiplier, plus the following:

Racial multipliers are as follows:

History

Prior to 0.13, Blink Other was subject to magic resistance.