Difference between revisions of "Channeling"
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''For spells like [[Searing Ray]] with an effect that requires several turns of focus, see [[Channeling spell]].'' | ''For spells like [[Searing Ray]] with an effect that requires several turns of focus, see [[Channeling spell]].'' | ||
{{flavour|Dramatically increases the user's regeneration of magical power for a duration that increases with Invocations skill.}} | {{flavour|Dramatically increases the user's regeneration of magical power for a duration that increases with Invocations skill.}} | ||
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==Passive Channeling== | ==Passive Channeling== | ||
| − | [[Orb]]s of [[energy]] and the [[ | + | [[Orb]]s of [[energy]] and the [[crystal ball of Wucad Mu]] allow you to passively channel energy, refunding the MP costs of spells you cast. |
| − | + | The energy [[ego]] refunds all MP from 20% of successful spell casts, and 100% of [[miscast]]s. However, it will increase your ''raw'' [[spell failure]] chance by +10%. The crystal ball of Wucad Mu is double an orb of energy, refunding 40% of successful casts, but applies +20% increase to raw spell failure. | |
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| + | Note that is this often less than a +10% / +20% increase to spell failure, as there is a stepdown applied. For reference, the first stack of [[wizardry]] reduces raw spell failure by 25%. For more details, see the [[Spell Success]] page. | ||
==History== | ==History== | ||
| − | *In [[0.30]], passive channeling | + | *In [[0.30]], passive channeling was be reworked again. Prior to this version, you had a <code>Sources * Evocations / 108</code> (orb of energy: 2 sources ; [[staff of Wucad Mu]]: 3) to succeed. If you succeeded, you had a <code>1 / (Evocations - MP cost)</code> to backfire, either draining 1-5 points of intelligence or inflicting [[confusion]]. As Wucad Mu is now an orb, you are physically unable to stack channeling. |
*In [[0.28]], the ability to stack multiple sources of passive channeling was added, along with the [[orb]] of [[energy]]. Success rate per source decreased, but all items count towards multiple sources. | *In [[0.28]], the ability to stack multiple sources of passive channeling was added, along with the [[orb]] of [[energy]]. Success rate per source decreased, but all items count towards multiple sources. | ||
*Prior to [[0.27]], the staff of Wucad Mu's success rate was <code> Evocations / 81</code> (buffed to <code> Evocations / 54</code>), and backfiring did not refund MP. | *Prior to [[0.27]], the staff of Wucad Mu's success rate was <code> Evocations / 81</code> (buffed to <code> Evocations / 54</code>), and backfiring did not refund MP. | ||
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*Prior to [[0.24]], Channel Magic was Sif Muna's *** ability. | *Prior to [[0.24]], Channel Magic was Sif Muna's *** ability. | ||
*Prior to [[0.19]], Sif Muna instead granted '''Channel Energy''', which was a repeatably usable ability, not a duration. With each use, it restored a small amount of MP (depending on Invocations skill) and cost [[hunger]] but no piety. | *Prior to [[0.19]], Sif Muna instead granted '''Channel Energy''', which was a repeatably usable ability, not a duration. With each use, it restored a small amount of MP (depending on Invocations skill) and cost [[hunger]] but no piety. | ||
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==References== | ==References== | ||
Revision as of 10:22, 5 May 2023
Version 0.30: This article may not be up to date for the latest stable release of Crawl.
For spells like Searing Ray with an effect that requires several turns of focus, see Channeling spell.
| Dramatically increases the user's regeneration of magical power for a duration that increases with Invocations skill. |
Channeling is the act of passively restoring MP to a character, as opposed to using a single-turn action like the Sublimation of Blood spell to restore MP. There are two types: Active Channeling (which require the use of an activated ability), and Passive Channeling (which comes from equipment and happens without the player's input).
Djinn do not use MP and cannot make use of any form of channeling.
Active Channeling
Channel Magic is an ability that allows worshipers of Sif Muna to restore MP much more quickly. Followers gain this ability at 1* piety.
Success rate: (60 + 4*Invocations)/100 + Piety/25
MP Recovered: 3-5 per turn for (4 + random2avg(2 * Invocations / 3)) turns, or roughly (4 + 2*Invocations/3) turns
Passive Channeling
Orbs of energy and the crystal ball of Wucad Mu allow you to passively channel energy, refunding the MP costs of spells you cast.
The energy ego refunds all MP from 20% of successful spell casts, and 100% of miscasts. However, it will increase your raw spell failure chance by +10%. The crystal ball of Wucad Mu is double an orb of energy, refunding 40% of successful casts, but applies +20% increase to raw spell failure.
Note that is this often less than a +10% / +20% increase to spell failure, as there is a stepdown applied. For reference, the first stack of wizardry reduces raw spell failure by 25%. For more details, see the Spell Success page.
History
- In 0.30, passive channeling was be reworked again. Prior to this version, you had a
Sources * Evocations / 108(orb of energy: 2 sources ; staff of Wucad Mu: 3) to succeed. If you succeeded, you had a1 / (Evocations - MP cost)to backfire, either draining 1-5 points of intelligence or inflicting confusion. As Wucad Mu is now an orb, you are physically unable to stack channeling. - In 0.28, the ability to stack multiple sources of passive channeling was added, along with the orb of energy. Success rate per source decreased, but all items count towards multiple sources.
- Prior to 0.27, the staff of Wucad Mu's success rate was
Evocations / 81(buffed toEvocations / 54), and backfiring did not refund MP. - Prior to 0.26, you could actively channel magic by evoking a staff of energy; compared to other active channeling items, this provided fewer MP but could not backfire. The staff of Wucad Mu could also channel magic in this way.
- Prior to 0.25, a crystal ball of energy could be used as a high-risk way to restore MP, much like the staff of Wucad Mu.
- Prior to 0.24, Channel Magic was Sif Muna's *** ability.
- Prior to 0.19, Sif Muna instead granted Channel Energy, which was a repeatably usable ability, not a duration. With each use, it restored a small amount of MP (depending on Invocations skill) and cost hunger but no piety.
