Difference between revisions of "Disc of storms"

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{{item
 
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{{flavour|This extremely powerful item can unleash a destructive storm of electricity. Its effectiveness greatly improves in the hands of one skilled in using magical devices.}}
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{{flavour|A crackling disc which can unleash a destructive storm of electricity. Its effectiveness greatly improves in the hands of one skilled in Evocations.}}
  
A '''disc of storms''' is a powerful evocable item which releases uncontrollable (and dangerous) electrical bolts when evoked. Its success rate rises with [[Evocations]].
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A '''disc of storms''' is a powerful evocable item which releases uncontrollable and dangerous [[electricity|electrical forces]] when evoked. Unlike other evocable items, it does not become inert after use, and has no hunger or MP cost; the only thing preventing a player from spamming it endlessly is the fact that the storm it releases can punish you as much as it punishes your enemies. Its success rate rises with [[Evocations]].
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The probability for successful evoking it is: (0.7 + [[Evocations]]/100)<sup>3</sup>. See the chart below:
  
 
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When the disc is activated,  2d(1 + Evocations/7) bolts are zapped at random tiles up to 6 tiles from you (including your tile). These bolts may be [[Lightning|bolts of lightning]], [[Shock|bolts of electricity]], or [[Conjure Ball Lightning|orbs of electricity]] (equal odds for each).
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When the disc is activated,  2d(1 + Evocations/7) effects are zapped at random tiles up to 6 tiles from you (this includes your own tile). Possible effects include:
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*[[Shock]]
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*[[Lightning]]
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*[[Orb of Electrocution]]
  
Using this item has an Evocations-based chance of creating rain clouds in the area surrounding the caster. This can turn regular tiles into shallow water and shallow water into deep water. It is therefore not recommended for use in the vicinity of your [[stash]], nor to use while in shallow water unless drowning isn't a risk for you.
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Using this item also has an Evocations-based chance of creating rain clouds in the area surrounding the caster. This can turn regular tiles into shallow water and shallow water into deep water. These water effects are only temporary, however, and rarely make any tactical difference.
  
{{crawlquote|''Nothing happens.'' (Evocations failure)<br>''The disc glows for a moment, then fades.'' (Evocations failure)<br>''Little bolts of electricity crackle over the disc.'' (Evocations failure)<br>''The disc erupts in an explosion of electricity!'' (Success)}}
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{{crawlquote|'''On Success:''' ''The disc erupts in an explosion of electricity!''<br>
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'''On Failure:''' ''The disc glows for a moment, then fades.'' -OR- ''Little bolts of electricity crackle over the disc.'' -OR- ''Nothing happens.''}}
  
 
==Strategy==
 
==Strategy==
It's difficult to understand how this item could be used safely or effectively. Even with electricity resistance, you'll need a large HP reservoir to safely use it: expect up to 90 damage in one cast without rElec, or about 30 with it. Since the same Evocations value that makes the disc reliable also makes it more powerful, when you do eventually get it to work, you're going to get it firing ''lots'' of bolts. Your own tile ''is'' a valid target tile for lightning and shock, but that's really the least of it. Lightning bolts can bounce and hit you. Exploding orbs of electricity have a blast diameter of 5 tiles, so if the disc emits an orb, odds are good that you will also be hit by the explosion.
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Do not use this item without understanding that you will take damage in the process. With electricity resistance, you can still find yourself taking up to 30 damage per use; without it, much, much more. Characters with small HP pools and who lack electricity resistance should probably set this item aside entirely. Those who ''do'' have significant amounts of HP and rElec, however, can get immense amounts of damage output in a very short amount of time when surrounded by enemies; you are effectively casting multiple powerful spells for free in a single action. These are all very [[noise|loud]] spells, so don't be surprised if reinforcements start appearing.
  
If you insist on using this device, the best areas for it are wide open spaces where lightning cannot bounce. The worst: at the end of a dead-end corridor. Certainly test the disc out at low Evocations (or, better yet, in [[Wizard mode]]) to get a feel for it before you attempt to use it in battle.
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Used in a wide open area, the majority of your bolts will fire wildly, hitting nothing, while your orbs of electricity will detonate, devastating everything nearby. Used in a narrow hallway, the bolts will reflect off the walls, likely multizapping everything nearby (including you). At the end of a dead-end hallway, you'll wind up multizapping yourself repeatedly while hitting almost none of your enemies; avoid using the disc when it's this blatantly suicidal.
  
==Calculations==
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Because using it has no cost aside from the turn spent evoking it, a character at full health, suddenly surrounded by opponents, can spam it to good effect. Just make sure you know what you're getting into before attempting this though. Try using it in a safe location at full health, just to get an idea of how much you'll be brutalizing yourself with each use.
The probability for successful evoking it is: (0.7 + [[Evocations]]/100)<sup>3</sup>
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==History==
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Disc of storms was removed in [[0.20]].
  
==History==
 
 
Prior to [[0.12]], the disc was unusable if you had electricity resistance.
 
Prior to [[0.12]], the disc was unusable if you had electricity resistance.
  
 
Prior to [[0.9]], it appeared unidentified, as a '''grey disc'''.
 
Prior to [[0.9]], it appeared unidentified, as a '''grey disc'''.
 
[[Category:014 Tiles]]
 

Latest revision as of 12:52, 27 February 2018

Obsolete: This article refers to an aspect of the game which has been removed. It is retained for historical reference only.
Type Miscellaneous item
Name Disc of storms
Icon Disc of storms.png
A crackling disc which can unleash a destructive storm of electricity. Its effectiveness greatly improves in the hands of one skilled in Evocations.

A disc of storms is a powerful evocable item which releases uncontrollable and dangerous electrical forces when evoked. Unlike other evocable items, it does not become inert after use, and has no hunger or MP cost; the only thing preventing a player from spamming it endlessly is the fact that the storm it releases can punish you as much as it punishes your enemies. Its success rate rises with Evocations.

The probability for successful evoking it is: (0.7 + Evocations/100)3. See the chart below:

Evocations Success Rate
0 34%
5 42%
10 51%
15 61%
20 73%
27 91%

When the disc is activated, 2d(1 + Evocations/7) effects are zapped at random tiles up to 6 tiles from you (this includes your own tile). Possible effects include:

Using this item also has an Evocations-based chance of creating rain clouds in the area surrounding the caster. This can turn regular tiles into shallow water and shallow water into deep water. These water effects are only temporary, however, and rarely make any tactical difference.

On Success: The disc erupts in an explosion of electricity!
On Failure: The disc glows for a moment, then fades. -OR- Little bolts of electricity crackle over the disc. -OR- Nothing happens.

Strategy

Do not use this item without understanding that you will take damage in the process. With electricity resistance, you can still find yourself taking up to 30 damage per use; without it, much, much more. Characters with small HP pools and who lack electricity resistance should probably set this item aside entirely. Those who do have significant amounts of HP and rElec, however, can get immense amounts of damage output in a very short amount of time when surrounded by enemies; you are effectively casting multiple powerful spells for free in a single action. These are all very loud spells, so don't be surprised if reinforcements start appearing.

Used in a wide open area, the majority of your bolts will fire wildly, hitting nothing, while your orbs of electricity will detonate, devastating everything nearby. Used in a narrow hallway, the bolts will reflect off the walls, likely multizapping everything nearby (including you). At the end of a dead-end hallway, you'll wind up multizapping yourself repeatedly while hitting almost none of your enemies; avoid using the disc when it's this blatantly suicidal.

Because using it has no cost aside from the turn spent evoking it, a character at full health, suddenly surrounded by opponents, can spam it to good effect. Just make sure you know what you're getting into before attempting this though. Try using it in a safe location at full health, just to get an idea of how much you'll be brutalizing yourself with each use.

History

Disc of storms was removed in 0.20.

Prior to 0.12, the disc was unusable if you had electricity resistance.

Prior to 0.9, it appeared unidentified, as a grey disc.