Ability Cooldown: Difference between revisions

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→‎Sources of Cooldown Reduction: added some sources of cooldown reduction not pulled in the table
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==Overview==
==Overview==
'''Ability Cooldown''' is a [[Stats|stat]] obtainable by [[Heroes]] though [[items]]. This stat is currently a percentage based reduction on the base [[ability]] time.
The '''Ability Cooldown''' of an ability is a period of time after being used that the ability cannot be used again. Cooldowns range from a few seconds, as in [[Lady Geist|Lady Geist's]] Malice, to a few minutes, as [[Dynamo|Dynamo's]] Singularity. Ability cooldowns can be reduced by acquiring the Cooldown Reduction stat, which reduces the cooldown by a percentage of base [[ability]] time.
 
Some abilities can acquire multiple charges. In those cases, the ability cooldown represents the time for a charge to become available again after being used.


===Stacking===
===Stacking===
Multiple sources of cooldown reduction stack multiplicatively.
Different sources of cooldown reduction stack multiplicatively. With <math>n</math> sources of cooldown reduction, total cooldown reduction is given by:
 
<math>\mathit{Displayed Cooldown Reduction} = 1 - (1 - \mathit{Cooldown Reduction 1}) * (1 - \mathit{Cooldown Reduction 2}) * ... * (1 - \mathit{Cooldown Reduction N})</math>


For example, with multiple sources of Cooldown Reduction
<math>CR_{Total} = 1 - \prod_{i=1}^n (1 - CR_i)</math>


* 24% Cooldown Reduction from the [[Superior Cooldown]] [[Items|Item]]
For example, with 12% Cooldown Reduction from [[Diviner's Kevlar]] and 16% Cooldown Reduction from [[Improved Cooldown]]:
* 15% Cooldown Reduction from the [[Spiritual Overflow]] [[Items|Item]] results in:


<math>\mathit{Displayed Cooldown Reduction} = 1 - (1 - \mathit{0.24}) * (1 - \mathit{0.15})) = 0.34 (34%)</math>
<math>CR_{Total} = 1 - (1 - 0.12) \times (1 - 0.16) \approx 26%</math>


== Sources of Cooldown Reduction ==
== Sources of Cooldown Reduction ==
[[Gold Urn|Gold Urns]] have a chance to drop a permanent 0.75% Cooldown Reduction buff.{{#invoke:ItemsByStat|tablefy|CooldownReduction|+X% Cooldown Reduction|%}}In addition to the generic cooldown reduction items listed above, [[Superior Cooldown]] provides +32% Imbued Ability Cooldown Reduction for a single chosen ability and +24% Non-imbued Ability Cooldown Reduction for those abilities not chosen.{{Stats}}
[[Gold Urn|Gold Urns]] have a chance to drop a permanent 0.75% Cooldown Reduction buff.{{#invoke:ItemsByStat|tablefy|CooldownReduction|+X% Cooldown Reduction|%}}In addition to the generic cooldown reduction items listed above, [[Superior Cooldown]] provides +32% Imbued Ability Cooldown Reduction for a single chosen ability and +24% Non-Imbued Ability Cooldown Reduction for those abilities not chosen.{{Stats}}

Revision as of 23:30, 4 October 2024

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Overview

The Ability Cooldown of an ability is a period of time after being used that the ability cannot be used again. Cooldowns range from a few seconds, as in Lady Geist's Malice, to a few minutes, as Dynamo's Singularity. Ability cooldowns can be reduced by acquiring the Cooldown Reduction stat, which reduces the cooldown by a percentage of base ability time.

Some abilities can acquire multiple charges. In those cases, the ability cooldown represents the time for a charge to become available again after being used.

Stacking

Different sources of cooldown reduction stack multiplicatively. With sources of cooldown reduction, total cooldown reduction is given by:

For example, with 12% Cooldown Reduction from Diviner's Kevlar and 16% Cooldown Reduction from Improved Cooldown:

Sources of Cooldown Reduction

Gold Urns have a chance to drop a permanent 0.75% Cooldown Reduction buff.

Item Cost +X% Cooldown Reduction
Spiritual Overflow Souls6200 +15%
Leech Souls6200 +12%
Improved Cooldown Souls1250 +14%
Diviner's Kevlar Souls6200 +12%

In addition to the generic cooldown reduction items listed above, Superior Cooldown provides +32% Imbued Ability Cooldown Reduction for a single chosen ability and +24% Non-Imbued Ability Cooldown Reduction for those abilities not chosen.