Cruelty

Cruelty is a buff associated with Cruelty SupportCruelty SupportSupport, Duration
Icon: Y
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 18Supports any skill that hits enemies. Minions cannot gain Cruelty.Supported Skills deal (15-24)% more Damage with Hits
Cruelty has a Base Duration of 4 seconds
Hits from Supported Skills grant Cruelty
(0-19)% increased Effect of Cruelty granted by Supported Skills

Additional Effects From 1-20% Quality:
(0.25-5)% increased Effect of Cruelty granted by Supported SkillsThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket. that grants more damage over time to supported skills.

Mechanics

Cruelty grants more damage over time with supported skills based on the percent of maximum life removed by a damaging hit. It lasts 4 seconds by default, and has a maximum effect of 40% which is unaffected by modifiers to its effect.^[1]

At gem level 20, The Cruelty buff provides 15.85% more damage over time to skills supported by Cruelty when the hit does 0.01% of the monster's ailment threshold and 40% more damage over time to skills supported by Cruelty when the hit does 3.2% of the monster's ailment threshold.^[2]

The effect of Cruelty is calculated using the following formula:^{[citation needed]}

$\color [rgb]{0.6392156862745098,0.5529411764705883,0.42745098039215684}E={1+M \over 120\%}*\left({D \over L}\right)^{0.2}$

where D is the is the amount of damage caused by a hit, L is the enemy's maximum life, and M is the sum of increases to Cruelty effect.

Sources

Support skill gems

Gem

Version history

Version	Changes
3.15.0	Maximum Cruelty Effect is now 40% (previously 50%).
3.14.0	Introduced to the game as a buff (which not related to the original passive skill)
Unknown	Removed from the game.
Unknown	Introduced to the game as a notable passive skill

References

↑ Mark_GGG (Jun 3, 2021). "Cruelty buff damage cap". Official Path of Exile Forums. Retrieved Jun 4, 2021.
↑ Community_Team (April 14, 2021). "GGG, Please explain Cruelty". Official Path of Exile Subreddit. Retrieved June 5, 2021.

[CrueltyCap-1] Mark_GGG (Jun 3, 2021). "Cruelty buff damage cap". Official Path of Exile Forums. Retrieved Jun 4, 2021.

[CrueltyCalculations-2] Community_Team (April 14, 2021). "GGG, Please explain Cruelty". Official Path of Exile Subreddit. Retrieved June 5, 2021.

[1]

[2]