Ability effects


 * NOTE: Not to be confused with spell effects, which are additional effects that occur when an ability lands.

On-hit effects are effects that trigger on a champion's autoattacks and a select few abilities. An autoattack or ability that applies on-hit effects can apply any number of these effects at once.

Critical Strikes
Critical strike is not considered an on-hit effect. A few select abilities can critically strike (,,  and ), but this should not be mistaken for standard functionality.

In almost all cases, the attack that triggers an on-hit effects may still critically strike and apply life steal. Also in most cases, critically striking will not affect the damage of the on-hit effect, unless explicitly said otherwise, such as.

Lifesteal

 * Life steal is an offensive stat that converts a percentage of the physical damage dealt by a champion's basic attack or ability that applies on-hit effects to health regained. For the main article, see life steal.

Life steal applies to all physical damage dealt on-hit, including any sourced from on-hit effects (with a few exceptions). and is a renowned example of powerful sustain as life steal not only applies to the basic damage on the attack, but the bonus damage on Sheen and the stacked damage on Siphoning Strike.

Life steal is calculated from the actual damage done to an enemy after armor and all other forms of damage reduction. Almost all champions have 0% base life steal. It can be increased with items, runes, masteries, and some champion abilities.

Damage dealt to enemies beyond your target through splash damage will not apply life steal. That is unless the damaging effect specifically states that on-hit effects will apply to all enemies damaged (such as and ).

Blind

 * For the full article, see crowd control.

While blinded, an attacker will not cause any on-hit damage. In most cases, non-damaging effects will still occur. Also in most cases, most one-use abilities will not be consumed until the attacker successfully lands an attack.

The following Champion abilities inflict Blind on an opponent:

Abilities that apply on-hit effects
The following abilities will apply on-hit effects instead of spell effects. Any ability not listed here will apply spell effects, regardless of how similar it may be to the abilities on this list or how similar to effect resembles a basic attack.
 * (up to 5 times)
 * (physical component)
 * Urchin Strike has two damaging components: one physical that applies on-hit effects and one magical that applies spell effects.
 * (classified as a melee attack)
 * (counts as attacking twice; applies on-hit and on-attack effects twice)
 * (counts as attacking twice; applies on-hit and on-attack effects twice)
 * (both hits)
 * (two or three times, according to his Fury)
 * (two times in human form and to all targets hit in dragon form)
 * (on every target hit)
 * (up to 5 times)
 * Applies life steal despite dealing magic damage.
 * (only on first target hit)
 * Applies life steal despite dealing magic damage.
 * (only on first target hit)

Pets that apply on-hit effects

 * Deals 75% of Shaco's attack damage, and any cloned on-hit effects at full damage. The clones attacks can critically strike and any life steal will heal itself.
 * Deals 45 / 60 / 75 % of Yorick's attack damage, and any copied on-hit effects at full damage but the clone's attacks can critically strike but it won't trigger life steal.
 * Deals magic damage equal to the target's base AD at level 1 + 100% of the target's bonus AD + 75% of Mordekaiser's AD (not including the 20% increase from Children of the Grave). It will apply any cloned on-hit effects sourced from items but not those sourced from champion abilities. Despite not applying spell effects, it will generate shield through. The clone's attacks can critically strike but it won't trigger life steal.
 * Deals 0% of LeBlanc's attack damage but will apply any cloned on-hit effects at full damage. Whether or not the mirror image can critically strike or trigger life steal is irrelevant as it has no basic attack damage unless you equip.
 * Deals magic damage equal to the target's base AD at level 1 + 100% of the target's bonus AD + 75% of Mordekaiser's AD (not including the 20% increase from Children of the Grave). It will apply any cloned on-hit effects sourced from items but not those sourced from champion abilities. Despite not applying spell effects, it will generate shield through. The clone's attacks can critically strike but it won't trigger life steal.
 * Deals 0% of LeBlanc's attack damage but will apply any cloned on-hit effects at full damage. Whether or not the mirror image can critically strike or trigger life steal is irrelevant as it has no basic attack damage unless you equip.
 * Deals 0% of LeBlanc's attack damage but will apply any cloned on-hit effects at full damage. Whether or not the mirror image can critically strike or trigger life steal is irrelevant as it has no basic attack damage unless you equip.
 * Deals 0% of LeBlanc's attack damage but will apply any cloned on-hit effects at full damage. Whether or not the mirror image can critically strike or trigger life steal is irrelevant as it has no basic attack damage unless you equip.

Physical Damage
The damage dealt by these effects will apply life steal unless otherwise stated. 

Non-Physical Damage
These abilities will not incur any healing. In all cases, the triggering attack will still apply life steal. 

Damage Over Time
These abilities will not incur any healing. In all cases, the triggering attack will apply life steal. 

Splash Damage

 * For the full article, see area of effect.

The damage dealt to enemies other than the original target will not trigger on-hit effects or spell-effects. If the attack misses or is blocked, the effect will not trigger. 

On Being Hit
The following abilities occur on being hit: 

Non-Damaging
The following abilities have a non-damaging on-hit effect component: 

Exceptions
The following "on-hit effects" are classified as abilities and will trigger spell effects, rather than on-hit effects. It is unknown of this behaviour is an oversight or intentional as they are visually identical to the on-hit effects of other champions. The triggering attack will still trigger on-hit effects. 

Pets
''Pets have a complicated relationship with on-hit effects and spell effects. For the full article, see pets.''
 * Any damage dealt by a pet that isn't its basic attacks will apply spell effects.
 * aura,, explosion,  laser
 * If its basic attacks deal damage based on its AD (regardless of whether the damage is physical or magical), it will trigger any on-hit effects that it is in possession of. It will not trigger the on-hit effects of its owner and it will not trigger spell effects at all.
 * ,, , , and all of  omens.
 * If its basic attacks deal damage based on its AP (regardless of whether the damage is physical or magical), it will trigger its owner's spell effects. It will not trigger on-hit effects (its own or its owner's).
 * is the only exception, although this is likely due to how old the champion is. The box's attacks will trigger spell effects, and despite having attack damage it deals damage based on an unseen statistic.
 * is the only exception, although this is likely due to how old the champion is. The box's attacks will trigger spell effects, and despite having attack damage it deals damage based on an unseen statistic.

On-Attack Effects/Auto-attack Modifiers
The following effects occur when your champion attacks or modifies your champion's basic attacks to behave differently. These effects are not triggered "on-hit", and will still occur even if the attack is dodged or blocked, or the attacker is blinded. On-attack effects consistently apply spell effects unless stated otherwise, with one exception.


 * Applies spell effects
 * Note that the triggering attack still applies on-hit effects as normal, except where stated.


 * (area of effect component)
 * (converts the entire attack to magic damage, life steal has no effect)
 * (converts the entire attack to magic damage, life steal has no effect)
 * (converts the entire attack to magic damage, life steal has no effect)
 * (persistent effect)
 * (area of effect component)
 * (area of effect component)


 * Applies on-hit effects
 * Note that while these effects will still occur while blinded; blind, block, dodge and parry will still interact with the damage dealt.


 * (counts as attacking twice; applies on-hit and on-attack effects twice)
 * (counts as attacking twice; applies on-hit and on-attack effects twice)
 * (dragon form; twice to all enemies damaged)
 * (to all enemies damaged; modified by critical strike; disables his standard attacks)


 * Applies neither

Triggers
The following effects are abilities that can be detonated on-hit. Regardless of how they are detonated.
 * (triggers spell effects)
 * (triggers spell effects)
 * (triggers the ally's spell effects)
 * (triggers spell effects)
 * (doesn't trigger spell effects)

On-Hit Effects


A few items have on-hit effects that require being activated:
 * (the activation of Entropy counts as casting an ability, and so will trigger effects like )

On-Attack Effects
The following effects occur when your champion attacks, rather than when the attack hits. They will trigger even if the attack is blocked or dodged, or if the attacker is blinded.

On Being Hit
A few other items trigger an effect on being hit by an enemy instead: