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Debuff

Tristana OriginalSquare Tristana under the effects of Nasus OriginalSquare Nasus' Wither Wither

Crowd control (commonly shortened to CC) is a blanket term used in League of Legends to describe abilities or spells that remove or diminish the control a target unit has over aspects of itself, such as being able to cast spells or initiate movement commands. As crowd controls impact a unit's combat ability, they are essentially more specialized forms of debuffs. However, this ability to directly hinder a unit's ability to fight means that crowd controls are often given significantly more importance in regular gameplay than normal debuffs, resulting in their special classification.

There are many different forms of crowd control, each of which is unique in the way it affects its target and the ways it can - if at all - be resisted, mitigated or removed. Some crowd controls can be exclusive or near-exclusive to certain champions or items, and different champions can apply the same crowd control in multiple different ways. A few specific mechanics (such as Yasuo OriginalSquare Yasuo's Last Breath Last Breath) even require a catalyst crowd control to function.

Crowd control effects that inhibit casting will only disable the summoner spells Flash Flash, Teleport Teleport, Hexflash Hexflash, and Mark Mark / Dash Dash. Stasis icon Stasis and Suppression icon suppression are exceptions to this and will prevent the caster from using any summoner spell.

All crowd controls, at the exception of Blind icon blind or Cripple icon cripple, will count toward assists, even if the ability they were applied from did not deal damage.

The following can be used even when casting is disabled by crowd control:

Types of Crowd Control

For the complete article, see Types of Crowd Control.

The following are the current forms of crowd control that exist within League of Legends:

  • Airborne icon Airborne: A unit that is airborne is unable to move, attack, cast abilities, or use item actives for the duration.
    • Knock aside: A knock aside causes the target to be made airborne in a direction perpendicular to the direction of cast.
    • Knock back: A knock back causes the target to be made airborne in a direction away from the point of cast. The duration depends on how far the target travels, from 0.75 seconds to 1.5 seconds.
    • Knock up: A knock up causes the target to be made airborne on the spot. The duration depends on how high is the target thrown into the air, from 0.75 seconds to 1.5 seconds.
    • Pull: A pull causes the target to be made airborne in a direction towards the point of cast.
  • Blind icon Blind: A unit that is blinded will miss its basic attacks for the duration. Miss occurs on-hit, and does not prevent attacks from being declared.
  • Cripple icon Cripple: A unit that is crippled has reduced attack speed for the duration.
  • Disarm icon Disarm: A unit that is disarmed cannot declare basic attacks for the duration.
  • Silence icon Disrupt: A unit that is disrupted has its Channeling icon channeled or charged ability interrupted.
  • Drowsy icon Drowsy: A unit that is drowsy is gradually slowed over the duration, falling asleep thereafter.
    • Sleep icon Sleep: A unit that is asleep is unable to move, attack, cast abilities, or use item actives for the duration as long as it doesn't get damaged.
  • Forced Action: A unit that is under the effect of a forced action cannot control its own movement or attacks and is unable to cast abilities or use item actives.
    • Charm icon Charm: A unit that is charmed will move toward the source with reduced movement speed for the duration.
    • Flee icon Flee: A unit that is fleeing will move directly away from the source with reduced movement speed for the duration.[1]
    • Taunt icon Taunt: A unit that is taunted will attempt to basic attack the source for the duration.
  • Grounded icon Ground: A unit that is grounded is unable to activate mobility spells for the duration.
  • Knockdown icon Knockdown: A unit that is knocked down has its Dash dash or Airborne icon displacement interrupted and is placed on the ground.
  • Nearsight icon Nearsight: A unit that is nearsighted has their sight radius reduced and loses their allied vision for the duration.
  • Root icon Root: A unit that is rooted is unable to control its movement or activate mobility spells for the duration.
  • Silence icon Silence: A unit that is silenced cannot cast abilities or use item actives for the duration.
    • Silence icon Polymorph: A unit that is polymorphed is Silence icon silenced and turned into a critter. The only example also applies Disarm icon disarm and reduces movement speed for the duration.
  • Slow icon Slow: A unit that is slowed has reduced movement speed for the duration.
  • Stasis icon Stasis: A unit that is in stasis is unable to perform any action while being Playful untargetable and Cosmic Radiance invulnerable for the duration.
  • Stun icon Stun: A unit that is stunned is unable to move, attack, cast abilities, or use item actives for the duration.
  • Suppression icon Suppression: A unit that is suppressed is unable to move, attack, cast abilities, or use item actives or summoner spells for the duration.

Crowd Control Movement Attacking Abilities Interrupts Channels Disabled Summoner Spells Modified by Tenacity Removal
Airborne icon Airborne Disabled Disabled Disabled Yes FlashTeleportMarkDashHexflash No Quicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly Lizard
with Dash dash or Flash blink and Fate's CallSoul Unbound 2
Blind icon Blind Allowed Parried Allowed No None Yes CleanseQuicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Cripple icon Cripple Allowed Reduced Allowed No None Yes CleanseQuicksilver Sash itemMikael's Crucible itemHighlanderBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Disarm icon Disarm Allowed Disabled Allowed No None Yes CleanseQuicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's Call
Forced Action - Charm icon Charm, Flee icon Flee, Taunt icon Taunt Uncontrollable Disabled / Uncontrollable Disabled Yes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Grounded icon Ground Partial Allowed Partial See notes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's Call
Nearsight icon Nearsight Allowed Partial Partial No None No Quicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's Call
Root icon Root Disabled Allowed Partial See notes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Silence icon Silence Allowed Allowed Disabled Yes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's Call
Drowsy icon Drowsy Reduced Allowed Allowed No None No CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Sleep icon Sleep Disabled Disabled Disabled Yes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Slow icon Slow Reduced Allowed Allowed No None Yes CleanseQuicksilver Sash itemMikael's Crucible itemDecisive StrikeHighlanderBattle Roar 2RagnarokRemove ScurvyBiggest Snowball Ever!Unbreakable WillDismounted Skaarl the Cowardly LizardFate's Call
Stasis icon Stasis Disabled Disabled Disabled Yes All No None
Stun icon Stun and Stun iconAirborne icon Suspension Disabled Disabled Disabled Yes FlashTeleportMarkDashHexflash Yes CleanseQuicksilver Sash itemMikael's Crucible itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2
Suppression icon Suppression Disabled Disabled Disabled Yes All No Quicksilver Sash itemBattle Roar 2RagnarokRemove ScurvyUnbreakable WillDismounted Skaarl the Cowardly LizardFate's CallSoul Unbound 2

Notes

Categorization

To facilitate easier communications, crowd controls are usually described under one of the following systems:

Loss of Control

Crowd controls are grouped into one of two categories depending on whether or not the effect removes total control of the player's character.

Total CC Partial CC
Airborne icon Airborne Blind icon Blind
Charm iconFlee iconTaunt icon Forced Action Cripple icon Cripple
Sleep icon Sleep Disarm icon Disarm
Stun icon Stun Drowsy icon Drowsy
Suppression icon Suppression Grounded icon Ground
Stun iconAirborne icon Suspension Knockdown icon Knockdown
Stasis icon Stasis Nearsight icon Nearsight
Root icon Root
Silence icon Silence
Slow icon Slow

Disruption

Crowd controls are grouped into one of two categories depending on whether or not the effect disrupts a Channeling icon channeled ability (such as Karthus OriginalSquare Karthus' Requiem Requiem and Katarina OriginalSquare Katarina's Death Lotus Death Lotus).

Note that Silence icon Disrupt will have the same interaction as hard disruption CC towards channels, but does not have a duration and thus is not a status effect. Grounded icon Ground and Root icon Root only interrupt channeled movement abilities.

Disrupts Does not disrupt
Airborne icon Airborne Blind icon Blind
Charm iconFlee iconTaunt icon Forced Action Cripple icon Cripple
Silence icon Silence Drowsy icon Drowsy
Stasis icon Stasis Disarm icon Disarm
Stun icon Stun Grounded icon Ground
Suppression icon Suppression Knockdown icon Knockdown
Stun iconAirborne icon Suspension Nearsight icon Nearsight
Sleep icon Sleep Root icon Root
Slow icon Slow

Immobilization

Crowd controls are grouped into one of two categories depending on whether or not they restrict movement. Hard CCs prevent all forms of movement, while soft CCs do not. This is how hard and soft CC is usually defined.

Hard CC Soft CC
Airborne icon Airborne Blind icon Blind
Charm iconFlee iconTaunt icon Forced Action Drowsy icon Drowsy
Root icon Root Disarm icon Disarm
Stasis icon Stasis Grounded icon Ground
Sleep icon Sleep Knockdown icon Knockdown
Stun icon Stun Nearsight icon Nearsight
Suppression icon Suppression Silence icon Silence
Stun iconAirborne icon Suspension Slow icon Slow
Cripple icon Cripple

Modifiers

Crowd controls are categorized by what their effects inhibit. Movement modifiers in some way inhibit the ability to move, while action modifiers in some way inhibit the ability to attack or cast abilities.

Movement Modifiers Action Modifiers
Airborne icon Airborne Airborne icon Airborne
Charm iconFlee iconTaunt icon Forced Action Charm iconFlee iconTaunt icon Forced Action
Grounded icon Ground Grounded icon Ground
Nearsight icon Nearsight Nearsight icon Nearsight
Sleep icon Sleep Sleep icon Sleep
Stun icon Stun Stun icon Stun
Suppression icon Suppression Suppression icon Suppression
Stun iconAirborne icon Suspension Stun iconAirborne icon Suspension
Knockdown icon Knockdown Blind icon Blind
Root icon Root Disarm icon Disarm
Slow icon Slow Silence icon Silence
Cripple icon Cripple

Increasing the duration of Crowd Control

Brittled unit screenshot

A unit with Brittle icon Brittle.

Brittle icon Brittle is a status effect that can be applied by Ornn OriginalSquare Ornn's Bellows Breath Bellows Breath and Call of the Forge God Call of the Forge God.

It temporarily reduces the affected unit's Tenacity icon Tenacity by 30% and ends prematurely when they become Stun icon immobilized.



Countering Crowd Control

Crowd Control immunity example

Ragnarok Ragnarok causes Olaf OriginalSquare Olaf to become immune to the Airborne icon knock up from Alistar OriginalSquare Alistar's Pulverize Pulverize.

Crowd control can be countered in various different ways.

Immunity

Crowd control immunity completely negates any attempt at application of CC on the unit. Becoming immune does not prevent already-applied crowd control from imposing their effects, unless they were explicitly removed.

A unit with the immunity status will indicate that they "Can't Be Disabled!" or are "Spell Immune!" when they resist a crowd control effect, or specifically "Can't Be Slowed!" upon negating a Slow icon slow or Cripple icon cripple effect with slow immunity. This indicator this may not appear for some immunities.

Total Immunity

All crowd control debuffs currently in League of Legends can be prevented with Cc-immune icon total CC immunity:

  • Fiora OriginalSquare Fiora's Riposte Riposte provides immunity to all forms of CC applied (except Nearsight icon nearsight) during the parry. Does not resist self/allied crowd control.
  • Galio OriginalSquare Galio's Hero's Entrance Hero's Entrance provides immunity to all forms of CC applied during the last 1.5 seconds of the channel. Does not resist self/allied crowd control.
  • Karthus OriginalSquare Karthus' Death Defied Death Defied provides immunity to all forms of CC applied while in the zombie state.
  • Kled OriginalSquare Kled's Dismounted Skaarl the Cowardly Lizard Dismount provides immunity to all forms of CC applied during the dismount and Chaaaaaaaarge!!! Chaaaaaaaarge!!! provides immunity to all forms of CC applied during the charge and the dash.
  • Kog'Maw OriginalSquare Kog'Maw's Icathian Surprise Icathian Surprise provides immunity to all forms of CC applied while in the zombie state.
  • Malzahar OriginalSquare Malzahar's Void Shift Void Shift provides immunity to all forms of CC applied while active and for a brief period after it's triggered. Does not resist self/allied crowd control.
Epic Monster in Stasis example

Bard OriginalSquare Bard's Tempered Fate Tempered Fate putting Baron NashorSquare Baron Nashor into Stasis icon stasis regardless of its immunity to Stun icon crowd control.

Displacement Immunity

Unstoppable example

Unstoppable Force Unstoppable Force causes Malphite OriginalSquare Malphite to be unaffected by the Knockdown icon knockdown from Veigar OriginalSquare Veigar's Event Horizon Event Horizon.

Unstoppable icon Displacement immunity provides immunity to Airborne icon displacements, (including Stun iconAirborne icon suspension, Knockdown icon knockdown, Devour Devour, Realm of Death Realm of Death, and The Show Stopper The Show Stopper), Sleep icon sleep and Stasis icon stasis. The effects of other types of crowd control as well as Fate's Call Fate's Call and Fear Beyond Death 2 Fear Beyond Death are deferred until the unit is no longer displacement immune, where their remaining duration may still affect them.

Aftershock rune Aftershock will not trigger against displacement immune units.

Skarner OriginalSquare Skarner's Impale Impale is the only ability that will ignore the effects of displacement immunity and drag its target regardless, interrupting their otherwise "unstoppable" action in the process. Click "Expand" for more details.

Impale Impale applies a small displacement to the target every 0.25 seconds whenever they are not close to Skarner OriginalSquare Skarner. These displacements do not apply Airborne icon airborne and are not flagged as displacements, meaning that targets who are not Cc-immune icon immune to the Suppression icon suppression are also never immune to the displacement either. As a consequence, Unstoppable icon displacement immunity fails to ignore this movement. See the table below regarding Impale Impale's interaction with abilities that grant displacement immunity.

Special interactions

The following Dash dashes are interrupted and do not apply their 'on dash completion' effects (if they have one) when successfully impaled:

  • Corki OriginalSquare Corki's Special Delivery Special Delivery
  • Nocturne OriginalSquare Nocturne's Paranoia Paranoia's recast
  • Sett OriginalSquare Sett's The Show Stopper The Show Stopper
    • This ability You and Me! attaches its target to Sett. Dragging him out will detach that unit from him.
  • Shyvana OriginalSquare Shyvana's Dragon's Descent Dragon's Descent
  • Yone OriginalSquare Yone's Soul Unbound 2 Soul Unbound (recast)
    • Yone's very high dash speed makes it almost impossible to catch him during the dash. Skarner is required to be close enough to Yone and needs to have near-perfect timing with Impale's cast in order to successfully cancel the dash. If cast too early, the recast will be deferred to the end of Impale's duration, or if cast too late, Impale will be canceled as Yone is already too far away.

The following Dash dashes are stopped likewise with the ones mentioned above, however, they do apply 'on dash completion' effects and when their dash is interrupted, the ability's effects are centered around their initial stopping point from Impale.

The following abilities do not have any special interactions with Impale other than being displaced during their cast.

Rek'Sai OriginalSquare Rek'Sai's Void Rush Void Rush has two different outcomes:

  • Impale is cast before the burrow into the ground:
    • Rek'Sai will not Hallucinate vanish while she's being dragged and her ultimate goes on a 10-second Cooldown reduction icon cooldown after a brief delay. The displacement immunity is not removed in this case however, which ends when the ability cancels.
  • Impale is cast after the emergence:
    • Rek'Sai's dash is interrupted.

Vi OriginalSquare Vi's Assault and Battery Assault and Battery behaves differently in contrast to the previously noted examples due to its uniqueness.

  • The dash is not interrupted and the displacement immunity is not removed. Vi will continue to march towards the target while simultaneously being displaced by Impale and dragged to Skarner. Once Impale ends, she is free of the displacement and will perform the ability as normal.
  • Enemies that come into range of her are still affected by entering her path.
  • The primary target is dealt the ability's final effects if they move into the respective range of Vi, thus performing the ability successfully in spite of Impale.

Camille OriginalSquare Camille's The Hextech Ultimatum The Hextech Ultimatum is impractical to test, as it renders her Playful untargetable instantly the moment it's activated, which will always cancel Impale's cast, regardless of the timing.

Kalista OriginalSquare Kalista's Fate's Call Fate's Call is not possible to test due to the target being Hallucinate vanished, rendering them unable to be selected for unit-targeted abilities like Impale.


It is important to note that total immunity and displacement immunity are not distinguished by the in-game user interface to display statuses relating to crowd control above the health bar. Both read "Unstoppable" which merely only indicates the unit is immune to crowd control in some form. It should not be confused as being the same effect.

Slow Immunity

Slow Immunity example

Highlander Highlander causes Master Yi OriginalSquare Master Yi to become immune to the Slow icon slow from Kog'Maw OriginalSquare Kog'Maw's Void Ooze Void Ooze.

Main: Slow_resist#Slow_Immunity

EditSlow immunity is a status effect that prevents the application of Slow icon slows.

The following prevent the application of Slow icon slows:


Cripple Immunity

Cripple Immunity example

Fury of the North Fury of the North causes Sejuani OriginalSquare Sejuani to become immune to the Cripple icon cripple from Malphite OriginalSquare Malphite's Ground Slam Ground Slam.

Main: Slow_resist#Cripple_Immunity

EditCripple immunity is a status effect that prevents the application of Cripple icon cripples, also known as Attack speed icon attack speed slows.

The following prevent the application of Cripple icon cripples:


Spell Shields

Spell Shield example 2

Banshee's Veil item Banshee's Veil preventing Orianna OriginalSquare Orianna from being affected by Blitzcrank OriginalSquare Blitzcrank's Rocket Grab Rocket Grab.

While not specific to crowd control, Spell Shield spell shields can be considered to provide pseudo-CC immunity against a single spell, but this is not guaranteed - abilities that do not interact with spell shields (such as Karthus OriginalSquare Karthus' Wall of Pain Wall of Pain) will still apply any attached crowd controls if possible. Multiple active spell shields existing on the same unit simultaneously will break against a single hostile ability that does not apply a crowd control effect.

  • Nocturne OriginalSquare Nocturne's Shroud of Darkness Shroud of Darkness provides immunity to CC applied with the first instance of a hostile ability blocked in the duration.
  • Sivir OriginalSquare Sivir's Spell Shield Spell Shield provides immunity to CC applied with the first instance of a hostile ability blocked in the duration.
  • Banshee's Veil item Banshee's Veil provides immunity to CC applied with the first instance of a hostile ability blocked while the passive is ready.
  • Edge of Night item Edge of Night provides immunity to CC applied with the first instance of a hostile ability blocked while the passive is ready.

Removal

Crowd control removal example

Karma OriginalSquare Karma activating Mikael's Crucible item Mikael's Crucible on herself to remove a Stun icon crowd control debuff.

Most types of Stun icon crowd control (CC) can be Remove Scurvy removed after they have been applied, with the cleansing ability or item remaining "castable" while affected by the CC it removes even if that CC normally precludes ability, spell, or item usage. Kalista OriginalSquare Kalista's Fate's Call Fate's Call, Yone OriginalSquare Yone's Soul Unbound 2 Soul Unbound recast, and Mikael's Crucible item Mikael's Crucible are exceptions to this "castable" rule. Suppression icon Suppression will disable all summoner spells, including Cleanse Cleanse.

Stasis icon Stasis effects cannot be removed through any means (excluding death) and will also disable cleansing effects for their duration. The capability to cleanse persistent crowd control is case by case and usually depends on the source of application. The Stun icon stun component of Airborne icon airborne effects can be removed by cleanse effects, but their move block cannot, unless it's being overridden by another move block (i.e. another displacing effect, Dash dash or Flash blink).

Reduction

Tenacity icon Tenacity reduces the duration of crowd control effects by a percentage equal to its value. Sources of tenacity will stack multiplicatively or additively with each other, depending on the source of the tenacity.

Airborne icon Displacements, Drowsy icon drowsy, Nearsight icon nearsight, Stasis icon stasis, and Suppression icon suppression are not affected by tenacity and will always apply for their full duration.

Potency Reduction

This unofficial stat is unique to Slow icon slows; Slow immune icon slow resist reduces the effectiveness, or percentage, of slowing effects. Although it does not affect flat reductions in Movement speed icon movement speed.

Self/Ally-CC

The following effects are comparable to crowd control, except that the effect is caused voluntarily and affects the user/an ally rather than an enemy.

  • Ally-Silence: A champion that is Silence icon silenced by an ally cannot cast abilities or activate items. This is currently the only example of an ability that applies crowd control to an allied champion.

Cast Times and Channels

The casting (sometimes "charging") of an ability cannot be canceled by the champion nor an enemy except by death. Charm iconFlee iconTaunt icon Forced action will have no effect for the duration of the cast, and using Airborne icon airborne effects to move the champion will not affect the trajectory of the skill - which will start from the point of the cast, not from the champion's current location, although it is important to note that some abilities will always cast from the current position. Summoner spells and most item actives can still be used while casting.

The channeling of an ability, by contrast, can be cancelled by hard CC, and will also automatically cancel should the champion attempt to perform another action (such as movement, casting another ability or attacking) - there do exist exceptions to this rule, such as Sion OriginalSquare Sion's Soul Furnace Soul Furnace cast while channeling Decimating Smash