Difference between revisions of "Spell memorisation"

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'''Spell memorisation''' is the process by which you learn spells from [[spellbook]]s in your inventory. This can be done by clicking on the spellbook, viewing the Memorisation tab of your inventory screen, or pressing '''M''' and selecting the desired spell from the list.
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'''Spell memorisation''' is the process by which you learn [[spell]]s from your spell library.  
  
==Memorisation restrictions==
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==Spell Library==
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The spell library can be viewed by pressing '''M'''. You can gain spells by starting [[background]], by picking up [[spell book]]s, or through the gifts of certain gods ([[Vehumet]], [[Kiku]]).
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Once you're in the memorisation menu, press the letter of the spell in order to learn it. This takes a few turns (<code>spell level + 1</code> turns), and is interrupted when you are attacked, so do it in a safe area.
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You can search for spells the library with '''ctrl-F''', and can switch between memorisation, checking descriptions, and hiding/showing spells you have no interest in with the '''!''' key.
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==Restrictions==
 
While any character may gain access to spells, the following restrictions apply:
 
While any character may gain access to spells, the following restrictions apply:
*You can memorise at most 20 spells. A [[scroll of amnesia]] or [[Sif Muna]]'s Forget Spell At Will ability will allow you to forget unwanted spells to free up space.
 
*Each spell has a spell level, ranging from 1 to 9. You can only memorize a total of (Experience Level + (2*Spellcasting)) levels of spells. The one exception to this is the pair of spells [[Fireball]] (level 6) and [[Delayed Fireball]] (level 7). Knowing both uses up only 7 levels.
 
*Trying to memorise a spell with the Blurry Vision [[mutation]] has a 25% chance of failure per level of mutation.
 
*You can't memorise while [[confused]] or [[berserk]].
 
*You can't memorise a spell whose level is higher than your experience level.
 
*In addition, some species cannot learn certain spells:
 
**[[Deep Dwarf]]: [[Regeneration]]
 
**[[Felid]]: [[Fire Brand]], [[Freezing Aura]], [[Lethal Infusion]], [[Warp Weapon]], [[Excruciating Wounds]], [[Poison Weapon]], [[Portal Projectile]], [[Sure Blade]], [[Tukima's Dance]]
 
**[[Ghoul]]: [[Blade Hands]], [[Borgnjor's Revivification]], [[Cure Poison]], [[Death's Door]], [[Dragon Form]], [[Ice Form]], [[Necromutation]], [[Spider Form]], [[Statue Form]], [[Stoneskin]]
 
**[[Mummy]]: Same as ghouls, plus [[Alistair's Intoxication]], [[Passwall]], Regeneration, [[Summon Horrible Things]].
 
**[[Vampire]]: Borgnjor's Revivification, Death's Door, and Necromutation.
 
**Lich Form: Same as mummies. If they knew the restricted spells before casting [[Necromutation]], they are unable to cast them in lich form, with the exception of Necromutation itself. Note that you can't rememorize Necromutation in lich form.
 
  
==Memorisation success==
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*There's a limit to the number of [[spell level]]s. Each spell has a level, from 1 to 9. You can only have up to <code>2 * Spellcasting + Experience Level - 1</code> levels of spells at one time. E.g. a character at XL 11 and 5 Spellcasting can learn 20 levels of spells - that's four level 5 spells, two level 9 + one level 2 spell, etc.
Your chance of success at memorising a spell is related to your chance to cast the same spell (calculation is not exactly the same, but close). You can guess the chance you have to memorise a spell by looking at the warning message you get:
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**If your spell level capacity is lowered ([[Ru]] sacrifice, removing [[Ashenzari]] curses), you will keep all your spells, even if you'd reach "negative" spell levels.
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*You cannot memorise a spell whose level is higher than your experience level.
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*There is a hard limit of 21 spells.
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In addition, you cannot physically memorise a spell if you are [[confused]], [[berserk]], or [[brainless]].
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A [[scroll of amnesia]] lets you unmemorise a spell, freeing up spell levels. The spell remains in your library, so you can relearn it later.
  
{| class="prettytable" cellpadding="2" border="1"
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===Species Restrictions===
|- align="center"
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Some [[species]] can't memorize certain spells, usually because they'd be useless:
! Warning message
 
! Chance of success
 
|-
 
| This spell is very difficult to memorise
 
| <15%
 
|-
 
| This spell is quite difficult to memorise
 
| 15–48%
 
|-
 
| This spell is rather difficult to memorise
 
| 48–75%
 
|-
 
| This spell is somewhat difficult to memorise
 
| 75–92%
 
|-
 
| This spell is not that difficult to memorise
 
| >92%
 
|-
 
|}
 
  
"Difficult" may be replaced by "tricky" or "challenging"; "memorise" may be replaced by "commit to memory", "learn", or "absorb". These changes are only flavour.
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*[[Djinn]] can not memorize spells. Instead, they get random spells every 2 XLs.
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*[[Ghoul]]s & [[Mummies]]: [[Sublimation of Blood]], high level Necromancy ([[Borgnjor's Revivification]], [[Death's Door]], [[Necromutation]]), form-changing spells ([[Beastly Appendage]], [[Blade Hands]], [[Dragon Form]], [[Storm Form]], [[Ice Form]], [[Necromutation]], [[Spider Form]], [[Statue Form]], and [[Wereblood]]).
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*[[Vampire]]s: high level Necromancy ([[Borgnjor's Revivification]], [[Death's Door]], [[Necromutation]]). They can memorize [[Sublimation of Blood]] and form-changing spells, but only cast when they are Alive.
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*[[Felid]]s: [[Portal Projectile]], [[Animate Armour]].
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*[[Gargoyles]]: [[Statue Form]], [[Sublimation of Blood]].
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*[[Formicid]]s: [[Blink]], [[Swiftness]], [[Vhi's Electric Charge]]
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*[[Octopode]]s & [[Draconian]]s: [[Animate Armour]].
  
Failing to memorise a spell has no effect, except from a [[Book of Annihilations]], a [[Book of Demonology]] or a [[Necronomicon]]. In these cases, you'll suffer a (likely high level) [[miscast effect]] from [[Conjurations]], [[Summonings]] or [[Necromancy]], respectively.
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Also note that memorising spells while worshipping [[Trog]] will trigger [[penance]].
  
 
==History==
 
==History==
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*Prior to [[0.26]], spells gifted by Vehumet were not added into the player's library even when memorised.
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*Prior to [[0.22]], there was no spell library. [[Spellbooks]] were permanent objects, and spells had to be memorised directly from a book each time.
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*Prior to [[0.12]], your chance of success at memorising a spell was related to your chance to cast the same spell. Failing to memorise a spell had no effect, except from a [[Book of Annihilations]], a [[Grand Grimoire]] or a [[Necronomicon]]. In these cases, you'd suffer a (likely high level) [[miscast effect]] from [[Conjurations]], [[Summonings]] or [[Necromancy]], respectively.
  
In [[0.12]] spell memorization failure will be made binary: all of the reasons given above for not being able to memorize a spell will remain true, but the difficulty-based random chance to memorize a spell will be removed.  Instead, any spell with a nonzero success rate can be memorized, although the game will warn you if casting the spell carries a significant risk of nasty miscast.
 
 
[[Category:Magic]]
 
[[Category:Magic]]
[[Category:Crystal Ball Articles]]
 

Revision as of 20:29, 19 September 2024

Version 0.32: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.

Spell memorisation is the process by which you learn spells from your spell library.

Spell Library

The spell library can be viewed by pressing M. You can gain spells by starting background, by picking up spell books, or through the gifts of certain gods (Vehumet, Kiku).

Once you're in the memorisation menu, press the letter of the spell in order to learn it. This takes a few turns (spell level + 1 turns), and is interrupted when you are attacked, so do it in a safe area.

You can search for spells the library with ctrl-F, and can switch between memorisation, checking descriptions, and hiding/showing spells you have no interest in with the ! key.

Restrictions

While any character may gain access to spells, the following restrictions apply:

  • There's a limit to the number of spell levels. Each spell has a level, from 1 to 9. You can only have up to 2 * Spellcasting + Experience Level - 1 levels of spells at one time. E.g. a character at XL 11 and 5 Spellcasting can learn 20 levels of spells - that's four level 5 spells, two level 9 + one level 2 spell, etc.
    • If your spell level capacity is lowered (Ru sacrifice, removing Ashenzari curses), you will keep all your spells, even if you'd reach "negative" spell levels.
  • You cannot memorise a spell whose level is higher than your experience level.
  • There is a hard limit of 21 spells.

In addition, you cannot physically memorise a spell if you are confused, berserk, or brainless.

A scroll of amnesia lets you unmemorise a spell, freeing up spell levels. The spell remains in your library, so you can relearn it later.

Species Restrictions

Some species can't memorize certain spells, usually because they'd be useless:

Also note that memorising spells while worshipping Trog will trigger penance.

History

  • Prior to 0.26, spells gifted by Vehumet were not added into the player's library even when memorised.
  • Prior to 0.22, there was no spell library. Spellbooks were permanent objects, and spells had to be memorised directly from a book each time.
  • Prior to 0.12, your chance of success at memorising a spell was related to your chance to cast the same spell. Failing to memorise a spell had no effect, except from a Book of Annihilations, a Grand Grimoire or a Necronomicon. In these cases, you'd suffer a (likely high level) miscast effect from Conjurations, Summonings or Necromancy, respectively.