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Revision as of 16:58, 12 March 2026

Ability Cooldown is the time it takes for an Ability to be usable again.

Overview

Cooldowns range from a few seconds, as in Lady Geist's Malice, to a few minutes, as in 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.

Charged Abilities

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. This should not be confused with the time between charges, which describes the delay after using a charge that a different charge can be used.

Calculation

Calculating Cooldown Reduction

Despite being presented in-game as +X% Cooldown Reduction, multiple sources stack multiplicatively, not additively:

$Total Cooldown Reduction = 1 - (1 - C R_{1}) \times (1 - C R_{2}) \dots$

Example: With 12% Cooldown Reduction from Diviner's Kevlar and 16% from Superior Cooldown:

Convert percentages to decimals: 0.12 and 0.16.
Subtract from 1: (1 - 0.12) = 0.88 and (1 - 0.16) = 0.84.
Multiply the remainders: 0.88 × 0.84 = 0.7392.
Subtract from 1: 1 - 0.7392 = 0.2608.
Total Cooldown Reduction is approximately 26%, not 28%.

Sources of Ability Cooldown Reduction

This is a dynamic list "Ability Cooldown Reduction". Edit contents.


Name	Cost	Category	Stat change
Spellslinger	6,400	Weapon	+5% Ability Cooldown Reduction
Enchanter's Emblem	1,600	Vitality	+5% Ability Cooldown Reduction
Compress Cooldown	1,600	Spirit	+18% Ability Cooldown Reduction
Superior Cooldown	3,200	Spirit	+20% Ability Cooldown Reduction
Transcendent Cooldown	6,400	Spirit	+25% Ability Cooldown Reduction
Frostbite Charm	Legendary	Spirit	+50% Ability Cooldown Reduction
Mystic Conduit	Legendary	Spirit	+40% Ability Cooldown Reduction

Witchmail has a passive that reduces the cooldown of a random ability as the player takes Spirit Damage.

Map Spawns

Golden Statues have a chance to drop a permanent Cooldown Reduction buff.
Powerup runes can provide a temporary Casting buff that provides +12% to +20% Cooldown Reduction for 160 seconds (scaling with game time from 5 to 40 minutes).

Item Cooldown

Item Cooldown is the time it takes for an Item to be usable again. This includes both Active and Passive items.

Charge-Up items such as Tankbuster and Mercurial Magnum are not affected by Item Cooldown Reduction.

Sources of Item Cooldown Reduction

This is a dynamic list "Item Cooldown Reduction". Edit contents.


Name	Cost	Category	Stat change
Transcendent Cooldown	6,400	Spirit	+25% Item Cooldown Reduction

@@ Line 1: / Line 1: @@
 '''Ability Cooldown''' is the time it takes for an [[Ability]] to be usable again.
 ==Overview==
-Cooldowns range from a few seconds, as in {{HeroIcon|Lady Geist}}'s {{AbilityIcon|Malice}}, to a few minutes, as in {{HeroIcon|Dynamo}}'s {{AbilityIcon|Singularity}}.  Ability cooldowns can be reduced by acquiring the Cooldown Reduction stat, which reduces the cooldown by a percentage of base [[ability]] time.
+Cooldowns range from a few seconds, as in {{HeroIcon|Lady Geist}}'s {{AbilityIcon|Malice}}, to a few minutes, as in {{HeroIcon|Dynamo}}'s {{AbilityIcon|Singularity}}. Ability cooldowns can be reduced by acquiring the Cooldown Reduction stat, which reduces the cooldown by a percentage of base [[ability]] time.
 ===Charged Abilities===
 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. This should not be confused with the time between charges, which describes the delay after using a charge that a different charge can be used.
-===Stacking===
+== Calculation ==
-Despite being presented in-game as +X% Cooldown Reduction, different sources of cooldown reduction stack multiplicatively, not additively. With <math>n</math> different sources of cooldown reduction, total cooldown reduction is given by:
-<math>CR_{Total} = 1 - \prod_{i=1}^n (1 - CR_i)</math>
+=== Calculating Cooldown Reduction ===
+Despite being presented in-game as +X% Cooldown Reduction, multiple sources stack '''multiplicatively''', not additively:
-For example, with 12% Cooldown Reduction from {{ItemIcon|Diviner's Kevlar}} and 16% Cooldown Reduction from {{ItemIcon|Superior Cooldown}}, total cooldown reduction is:
+<math>\text{Total Cooldown Reduction} = 1 - (1 - CR_1) \times (1 - CR_2) \dots</math>
-<math>CR_{Total} = 1 - (1 - 0.12) \times (1 - 0.16) \approx 26%</math>
+'''Example:'''
+With '''12%''' Cooldown Reduction from {{ItemIcon|Diviner's Kevlar}} and '''16%''' from {{ItemIcon|Superior Cooldown}}:
+# Convert percentages to decimals: 0.12 and 0.16.
+# Subtract from 1: (1 - 0.12) = '''0.88''' and (1 - 0.16) = '''0.84'''.
+# Multiply the remainders: 0.88 × 0.84 = '''0.7392'''.
+# Subtract from 1: 1 - 0.7392 = '''0.2608'''.
+# Total Cooldown Reduction is approximately '''26%''', not 28%.
 == Sources of Ability Cooldown Reduction ==