Lifesteal

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Lifesteal is a mechanic which heals a player by a portion of the damage they deal to an opponent. There are two main types of lifesteal, each with an associated stat: Bullet Lifesteal, which returns a portion of the bullet damage dealt, and Spirit Lifesteal, which returns a portion of the spirit damage dealt. Bullet and Spirit Lifesteal are calculated identically, but are affected by different items.

Formula edit

Despite being presented in-game as +X% Bullet/Spirit Lifesteal, different sources of lifesteal stack multiplicatively, not additively. With   different sources of the same category of lifesteal, final lifesteal   is given by:

 

where   is the lifesteal provided by the  th source. Bullet and Spirit Lifesteal are calculated independently of each other, but both use the same formula.

Example edit

With 10% Bullet Lifesteal from   Crippling Headshot and 35% Bullet Lifesteal from   Leech, the player's final bullet lifesteal is:

 

This means that any time the player deals bullet damage to any opponent (including denizens), they will immediately be healed by 41.5% of the damage dealt. Note that the in-game user interface is inconsistent in how it rounds the final lifesteal percentage.

Bullet Lifesteal edit

  Bullet Lifesteal returns a percentage of all outgoing bullet damage to the player as health.

Sources edit

List of items
Name CostCategoryStat change
  Active Reload1,250Weapon+20% Bullet Lifesteal
  Heroic Aura3,000Weapon+20% Bullet Lifesteal
  Crippling Headshot6,200Weapon+10% Bullet Lifesteal
  Vampiric Burst6,200Weapon+100% Bullet Lifesteal
  Bullet Lifesteal1,250Vitality+28% Bullet Lifesteal
  Leech6,200Vitality+35% Bullet Lifesteal

Spirit Lifesteal edit

  Spirit Lifesteal returns a percentage of all outgoing spirit damage to the player as health.

Sources edit

List of items
Name CostCategoryStat change
  Soul Shredder Bullets1,250Weapon+20% Spirit Lifesteal
  Crippling Headshot6,200Weapon+10% Spirit Lifesteal
  Spiritual Overflow6,200Weapon+10% Spirit Lifesteal
  Enduring Spirit500Vitality+10% Spirit Lifesteal
  Spirit Lifesteal1,250Vitality+23% Spirit Lifesteal
  Leech6,200Vitality+35% Spirit Lifesteal
  Infuser500Spirit+20% Spirit Lifesteal
  Slowing Hex1,750Spirit+10% Spirit Lifesteal
  Diviner's Kevlar6,200Spirit+20% Spirit Lifesteal
  Mystic Reverb6,200Spirit+14% Spirit Lifesteal

Soul Shredder Bullets edit

The debuff applied to opponents by   Soul Shredder Bullets behaves differently from all other lifesteal items. It does not affect the user's Spirit Lifesteal stat, nor is it factored into the formula above; instead, it adds a flat +20% spirit lifesteal against an affected target while the debuff is active. For example, if a player had Soul Shredder Bullets,   Enduring Spirit (+10%), and   Leech (+35%), their spirit lifesteal against a target affected by Soul Shredder Bullets would be:

 

Their spirit lifesteal against a target not affected by Soul Shredder Bullets would instead be 41.5% (equal to their Spirit Lifesteal stat).

Melee Lifesteal edit

Main articles: Melee Lifesteal, Lifestrike

Melee Lifesteal is not a stat. The item   Melee Lifesteal and its upgrade   Lifestrike both provide a passive ability which heals the user by a percentage of their melee damage dealt, but they behave differently from Bullet and Spirit Lifesteal. These abilities activate for one melee attack, then go on cooldown for several seconds, during which no further health can be regained from melee attacks; Bullet and Spirit Lifesteal are always active and have no associated cooldowns. These items also grant a flat healing bonus on activation, and are less effective against non-heroes, neither of which is true of Bullet and Spirit Lifesteal.