Spirit Lifesteal

This article is about the stat. For the item, see Spirit Lifesteal (item).

Spirit Lifesteal is a stat that causes a percentage of spirit damage dealt to be gained as health.

Math

Despite being presented in-game as +X% Spirit Lifesteal, different sources of spirit lifesteal stack multiplicatively, not additively.^{[note 1]} With $n$ different sources of spirit lifesteal, final spirit lifesteal $S L_{F}$ is given by:

$S L_{F} = 1 - \prod_{i = 1}^{n} (1 - S L_{i})$

where $S L_{i}$ is the spirit lifesteal provided by the $i$ th source.

Example

With 10% Spirit Lifesteal from Enduring Spirit and 35% Spirit Lifesteal from Leech, final spirit lifesteal is:

$S L_{F} = 1 - (1 - 0.10) \times (1 - 0.35) = 41.5 %$

Note that the in-game user interface is inconsistent in how it rounds the final number.

Sources of Spirit Lifesteal

Item	Cost	+X% Spirit Lifesteal

↑ With one exception: the debuff applied by Soul Shredder Bullets always adds a flat +20% spirit lifesteal against the target, and is not factored into the calculation for the Spirit Lifesteal stat.

[1] With one exception: the debuff applied by Soul Shredder Bullets always adds a flat +20% spirit lifesteal against the target, and is not factored into the calculation for the Spirit Lifesteal stat.

[note 1]