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On-hit effect

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

On-hit effects are effects that are triggered when a champion's basic attacks hits an enemy, and by a selected few abilities. An autoattack or ability that applies on-hit effects can apply any number of these effects at once.

All on-hit effects will contain the words "on hit" in their description. If they do not, they may be an on-attack effect instead.

On-Attack Effects

On-attack effects are a special category, similar to on-hit effects, but are applied only when a champion basic attacks. Unlike on-hit effects, on-attack effects are not effected by dodge, block, or blind.

On-attack effects are not considered on-hit effects by abilities or other effects.

On-attack effects can be distinguished from on-hit effects in that the description will not use the words "on hit".

Critical Strikes

Critical strike is not considered an on-hit effect. A few selected abilities can critically strike (Alpha Strike.png Alpha Strike, Steel Tempest.png Steel Tempest, Parrrley.png ParrrleyJudgment.png Judgment, Spear Shot.png Spear Shot, and Bullet Time.png Bullet Time), but this should not be mistaken for standard functionality.

In almost all cases, the attack that triggers an on-hit effect 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 Statikk Shiv item.png Statikk Shiv.

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, like Jarvan IV Jarvan IV's Martial Cadence.png Martial Cadence). Sheen item.png Sheen and Nasus Nasus' Siphoning Strike.png Siphoning Strike 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 Ravenous Hydra item.png Ravenous Hydra and Rat-Ta-Tat-Tat.png Rat-Ta-Tat-Tat).

Prevention

While few in number, there are ways to prevent the application of basic attacks, including those generated by abilities, and their respective on-hit effects. Successfully activating or applying any of them causes the following:

  • All damage associated with the attack is avoided entirely, irrespective of damage type.
  • Consumable on-attack effects (e.g.: Siphoning Strike.png Siphoning Strike vs. Blind icon Blind) are consumed, but do not apply their effects.
  • On-hit effects with a per-target cooldown (e.g.: Staggering Blow.png Staggering Blow) trigger the per-target cooldown, but do not apply their effects.
  • Pseudo-on-hit effects (e.g.: Empower.png Empower) are avoided entirely.
  • PENDING FOR TEST Effects that benefit the attacker for landing an attack (e.g.: Wolf's Frenzy.png Wolf's Frenzy) still apply as if the basic attack connected with the target.

Means of Prevention

Block

In a manner similar to spell shields, abilities that block basic attacks prevent them as per the above rules. The following champion abilities can block:

Miss

Basic attacks that miss do not connect with their target, as per the above rules. Unlike block, this effect is centered on the unit applying the negated basic attacks, rather than the target. Basic attacks can miss under the following circumstances:

Items

On-Hit Effects

All of the following items' effects occur on-hit:

Activated On-Hit Effects

A few items have on-hit effects that require being activated:

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:

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 its effect resembles a basic attack.

Pets that apply on-hit effects

  • Shaco Shaco's Hallucinate.png Hallucinate
    • Deals 75% of Shaco's attack damage, and any cloned on-hit effects at full damage. The clone's attacks can critically strike and any life steal will heal itself.
  • Mordekaiser Mordekaiser's Children of the Grave.png 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 its attacks. The clone's attacks can critically strike but won't trigger life steal.

Champion Abilities

Physical Damage

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

Special Magic Damage

The damage dealt by these effects will apply life steal despite dealing magic damage. When applying the Spellblade effect of Sheen item.png Sheen, Iceborn Gauntlet item.png Iceborn Gauntlet or Trinity Force item.png Trinity Force, the proc is converted into magic damage as the base attack is.

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.

Misnomers

Pets

Pets have a complicated relationship with on-hit effects and spell effects. For the full article, see champion summoned units.
  • Any damage dealt by a pet that isn't its basic attacks will apply spell effects.
  • 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.
  • 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).
  • Shaco Shaco's Jack in the Box.png Jack in the Box 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.
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.
Applies neither

Triggers

The following effects are abilities that can be detonated on-hit. Regardless of how they are detonated.

Notes

  • Blind mitigates all basic attacks attempted while blinded, including their on-hit effects.
  • Life steal restores health based on physical damage dealt to your target with basic attacks, abilities that apply on-hit effects, and abilities that modify your next basic attack.
  • The Black Cleaver item.png The Black Cleaver applies to all physical damage sourced from the holder, including on-hit effects.
  • Morellonomicon item.png Morellonomicon applies to all magical damage sourced from the holder, including on-hit effects.


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