Types of Crowd Control

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Crowd Control	Movement	Attacking	Abilities	Interrupt	Spells	Affected by Tenacity	Removal
Airborne	Blocked	Blocked	Blocked	Yes		No	with  dash or  blink
Blind	Allowed	Parried	Allowed	No	Allowed	Yes
Cripple	Allowed	Reduced	Allowed	No	Allowed	Yes
Disarm	Allowed	Blocked	Allowed	No	Allowed	Yes
Charm /  Flee /  Taunt Forced Action	Blocked	Blocked	Blocked	Yes		Yes
Ground	Partial	Allowed	Partial	See notes		Yes
Nearsight	Allowed	Partial	Partial	No	Allowed	No
Root	Blocked	Allowed	Partial	See notes		Yes
Silence	Allowed	Allowed	Blocked	Yes		Yes
Drowsy	Reduced	Allowed	Allowed	No	Allowed	No
Sleep	Blocked	Blocked	Blocked	Yes		Yes
Slow	Reduced	Allowed	Allowed	No	Allowed	Yes
Stasis	Blocked	Blocked	Blocked	Yes	Blocked	No	None
Stun and  Suspension	Blocked	Blocked	Blocked	Yes		Yes
Suppression	Blocked	Blocked	Blocked	Yes	Blocked	No

Notes

• Movement includes basic movement and mobility abilities (i.e.  dashes and  blinks, e.g. Ezreal's Arcane Shift or Shen's Shadow Dash).
  •  Ground does not impede basic movement, but existing sources will also apply a  slow.
• Attack refers to a champion's basic attacks (by default right-click).
• Ability refers to a champion's castable spells (by default , , , and ).
• Spells refer to summoner spells.
• Interrupt refers to whether or not the effect will cancel  channeled and charged abilities.
  •  Roots and  Grounding will only interrupt movement channels, unless otherwise stated.
• Removal refers to  cleansing effects that can dispel the crowd control debuff.
•  Airborne,  Knockdown, and  Stasis are the only crowd control effects that interrupt  dashes and  displacements (airborne status while knocked up is not changed by stasis however).
• Crowd control applied by one's self or an ally cannot be countered in any way (neither reduced, resisted, nor removed), with the exception of self  slows (e.g.  Pyke's Bone Skewer, Rammus' Defensive Ball Curl, and  Galio's Shield of Durand), which are reduced by  slow resist. There are exceptions to this rule.
•  Brittle is a  debuff uniquely applied by Ornn. It reduces a unit's effective  Tenacity by 30% and increases the duration of  Airborne effects by that percentage. It is consumed by  immobilizes.
•  Forced Action crowd control effects end prematurely if the Source is  killed.
• All crowd control effects that inhibit attacking also  interrupt attack windups. In terms of crowd control,  unstoppable basic attacks are interrupted by  polymorph only.
• All crowd control effects that inhibit casting will also disable recast abilities, unless otherwise stated by the ability.
•  Spell shield blocks all components of an ability, including crowd control (unless otherwise stated).
• Anivia's Glacial Storm is special cased to be deactivated by all forms of crowd control that would usually interrupt  channels.
• The following mobility spells are special cased to be interrupted by  immobilizations:
  • Yasuo's Sweeping Blade
  • Rakan's Grand Entrance and Battle Dance
  • Yuumi's You and Me!
  • Gnar's Hop bounce is prevented.
  • Ziggs' Satchel Charge's explosion does not cause him to fly.
  • Shadow Assassin's Shadow Step's buff is lost.
•  Taunt is the only crowd control that could theoretically break  stealth, as the status effect is interrupted by declaring attacks.

Airborne

EditA unit is made airborne alongside undergoing a forced displacement in a specified direction or to a specific point. For the duration, the unit is also  stunned.

A unit that is stunned combines the effects of  Disarm,  Root and  Silence.

• A unit that is disarmed is unable to declare  basic attack commands.
• A unit that is rooted is unable to cast movement commands or activate  dashing or  blinking spells for the duration.
• A unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Interrupts:	The accompanying  stun interrupts attack windups (exception:  unstoppable basic attack) and all  channeled and charged abilities. The accompanying displacement interrupts all  dashes and overrides previous airborne effects.
Reduction:	The duration of airborne and its forced movement execution time is unaffected by  Tenacity (with the exception of  Brittle).
Resist:	Resisted by  crowd control immunity and  Unstoppability.
Removal:	The forced movement that comes with airborne effects cannot be removed by cleansing effects. However,  Cleanses can be used to remove the underlying  stun, allowing the user to cast abilities and spells only (moving and attacking are still disabled): a  dash or  blink ability can be used to overrule the forced movement. Note that Cleanse and Mikael's Crucible, specifically, cannot be used to do this.

To expand upon the countering of airborne effects, consider that the effects are made up of two components: a movement modifier (called a "move block" by Riot, referring to a chunk of code) and a stun (which is responsible for disabling the actions of attacking and casting). As a general rule, the most recent move block will over-rule any previous move blocks, which is how Alistar's Headbutt and Pulverize combo functions. This rule also extends to all beneficial movement modifiers, such as  dashes and  blinks, which is why Rocket Grab and Rocket Jump will over-rule each other depending on their order of activation. Most beneficial movement modifiers do not prevent the activation of abilities, allowing Tristana to still activate abilities during Rocket Jump but not during Rocket Grab.

• In some instances, the stun duration is longer than the move block (e.g. Sion's Unstoppable Onslaught), but in most cases they are the same duration. There have been cases in the past where the stun duration was shorter, but this usually lead to bug-like interactions and was later "fixed" (e.g. Azir's Emperor's Divide did not apply any stun at all in the initial charge on the ability, which allowed his enemies to use an instant movement ability to supersede the charge's knockback and get over the wall).

Knock Aside

• The target is made  airborne in a direction perpendicular from the source.
• Champions with knock aside: Corki, Draven, Urgot (minions and monsters only), Taliyah, Vi.
• Monsters with knock aside: Rift Herald.

Knockback

• The target is made  airborne in a direction directly away from the point of cast.
• Champions with knockback: Aatrox (champions and large monsters), Anivia, Alistar, Aurelion Sol, Azir, Camille, Fizz, Gnar, Gragas, Graves (minions and monsters only), Hecarim, Janna, Jarvan IV, Jayce, Kled, Lee Sin, Maokai, Ornn, Poppy, Quinn, Rammus, Shyvana, Syndra, Sion (minions and monsters only), Taliyah, Thresh, Tristana, Trundle, Vayne, Vel'Koz,  Vi,  Xin Zhao, Yorick, Zac,  Ziggs.
• Monsters with knockback: Baron Nashor, Dragon, Rift Herald.

Knockup

• The target is made  airborne on the spot.
• Champions with knockup: Aatrox, Alistar, Blitzcrank, Braum, Cho'Gath, Fizz, Galio, Ivern, Janna, Jarvan IV, Kalista, Lee Sin, Lulu, Malphite,  Nami,  Nautilus, Ornn, Poppy, Rakan, Rek'Sai,  Riven, Rhaast, Sion, Sejuani,  Taliyah, Vel'Koz, Vi,  Wukong, Xin Zhao, Yasuo, Zac, Zyra.
• Monsters with knockup: Baron Nashor.

Pull

• The target is made  airborne in a direction toward the point of cast, and in some cases over the point of cast.
• Champions with pull: Aatrox (champions and large monsters), Blitzcrank, Darius, Diana, Kled, Orianna, Mordekaiser, Nautilus, Pyke, Sett, Singed, Sion, Skarner, Syndra (minions and monsters only), Thresh, Urgot, Vi (non-champions only).

Blind

EditA unit that is blinded will miss their basic attacks, comparable to attacking a target that is able to  dodge or  block, but not mechanically similar. Missed attacks will fail to deal damage or apply on-hit effects, with the exception of some empowered basic attacks. Blind does not prevent the unit from declaring attacks, unlike  Disarm.

Note: Blind causes Graves' shotgun to fire pellets with a random spread, excluding the direction of his target.

Interrupts:	Does not interrupt any abilities, but will prevent on-hit effects from being triggered unless otherwise stated. This does not consume the effects, however, and they will simply wait until a successful attack lands or their buff times out.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity
Removal:	Removed by  Cleanses, with the exception of Mikael's Crucible

• Champions with blind: Teemo
• Thornmail's passive deals damage before the attack is reduced by any effect, including blind, meaning it will apply even if the attacker is blinded.
• Blinded enemies will only miss if the attack is declared while blinded;  ranged units still hit if the  projectile fires before the blind.

Cripple

EditA unit that is crippled has reduced  attack speed for the duration.

Interrupts:	Does not interrupt any abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity, Master Yi's Highlander, and Sejuani's Fury of the North.
Removal:	Removed by  Cleanses and specifically Master Yi's Highlander.

• Champions with cripple: Fiora, Malphite, Nasus
• Items with cripple: Frozen Heart, Randuin's Omen, Thornmail, Warden's Mail

Disarm

EditA unit that is disarmed is unable to declare  basic attack commands.

Interrupts:	Interrupts basic attack windups with the exception of  unstoppable basic attacks.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses, excluding Mikael's Crucible.

• Champions with disarm: Amumu, Lulu, Quinn (non-champions only).
  • Reloading is mechanically similar to being disarmed, which is featured on Graves and Jhin, but is considered a self-lockout.

Disrupt

EditWhen a unit is disrupted, it has their  channeled and charged abilities interrupted. Unlike  Silence, the unit can still cast abilities.

Disrupt is not, and does not apply, a  status effect.

Interrupts:	Interrupts all  channeled and charged abilities
Reduction:	The effect is instantaneous. There is nothing to reduce.
Resist:	Resisted by  crowd control immunity
Removal:	The effect is instantaneous. There is nothing to remove.

• Champions with disrupt: Kassadin, Viktor, Camille

Forced action

Charm

For the item, see Faerie Charm

EditA unit that is charmed is forced to walk toward the Source (the unit that casted the Charm spell) for the duration, during which they're also  silenced. All charms also apply a  slow, with the strength depending on the spell.

A unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Interrupts:	Interrupts attack windups ( unstoppable basic attack exception) and all  channeled and charged abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses or when the Source dies.

• Champions with charm: Ahri, Evelynn, Rakan.

Fear / flee

EditA  champion that is fleeing or feared is forced to move directly away from the Source (the unit that casted the Fear spell) for the duration, during which they're also  silenced. All fears also apply a  slow.  Non-champions affected by Fear will instead move around aimlessly.

A unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Interrupts:	Interrupts attack windups ( unstoppable basic attack exception) and all  channeled and charged abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses or when the Source dies.

• Champions with flee: Aatrox (non-champions only), Darius (non-champions only), Fiddlesticks, Hecarim, Nocturne, Shaco, Urgot, Warwick.

Taunt

EditA unit that is taunted will attempt to perform basic attacks on the Source (the unit that casted the Taunt spell) for the duration, during which they're also  silenced.

A unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Interrupts:	Interrupts attack windups ( unstoppable basic attack exception) and all  channeled and charged abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses or when the Source dies.

• Champions with taunt: Shen, Rammus, Galio.

Ground

EditA unit that is grounded is unable to activate mobility spells, which include all active  dash and  blink abilities - including summoner spells Flash, Teleport, Hexflash, and Mark / Dash, plus a number of additional cases, but not Recall and Empowered Recall. The effect does not innately  knockdown a target that is already performing a dash. Grounded units can still be  displaced.

Ground is the only type of  crowd control that is most commonly found in persistent area of effects, which will reapply the status effect continously.

Interrupts:	Interrupts movement channels unless otherwise stated.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses with the exception of Mikael's Crucible.

• Champions with ground: Cassiopeia, Poppy, Singed.

Knockdown

EditKnockdown only affects units that are performing a  dash or being displaced by an  airborne effect. A unit that is knocked down has its dash or displacement interrupted and is placed on the ground instantly.

Knockdown is not a  status effect.

Interrupts:	Interrupts all  dashes and  airborne effects (displacement and status effects). Knocked up units with no sourced  debuff are instead placed onto the ground quicker.
Reduction:	The effect is instantaneous. There is nothing to reduce.
Resist:	Resisted by  crowd control immunity and  Unstoppability.
Removal:	The effect is instantaneous. There is nothing to remove.

• Champions with knockdown: Ahri, Amumu, Jinx, Lissandra, Malzahar, Sejuani, Veigar, Viktor, Warwick.

Nearsight

EditA unit that is nearsighted has their  sight radius reduced and loses their allied and other external vision (i.e. their ability to see what their allies see;  wards and  traps; abilities that grant vision). This means it prevents  unit-targeted effects, such as basic attacking, from being used outside of the unit's reduced sight radius, requiring the unit to have personal vision of their target.  True sight and  unobstructed vision do not infiltrate nearsight.

Interrupts:	Interrupts target commands if the nearsighted unit's target is outside of their new vision area and prevents  automated target acquisition.
Reduction:	The duration is unaffected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses with the exceptions of Cleanse and Mikael's Crucible.

• Champions with nearsight: Graves, Nocturne, Quinn.
  • The following abilities from said champions apply nearsight:
    • Quinn's Blinding Assault reduces sight radius of the enemy target to 330 units.
    • Nocturne's Paranoia reduces sight radius of enemy champions 「 to 1,030 units. 」「 by 320 units. 」
    • Graves' Smoke Screen reduces sight radius of enemies inside the bubble to 250 units oriented to the center, but grants them vision of the entire smoke bubble.
      • Resisting and removal effects will only apply to the loss of shared vision. Enemies outside Smoke Screen cannot see through its area of effect and vice versa by any means. This is not a status effect.
• The allied portrait icons do not update while nearsighted unless an ally  dies; the health, resource, level, and ultimate indicators do not change from at the time of being nearsighted initially. This also applies to the tab view for seeing the item inventory for all champions in a match.
• Multiple applications of nearsight debuffs will only consider the one with the greatest sight reduction.
• Since  sight is shared, allies will not be able to see further than their nearsighted ally's sight radius. This vision can still be effectively granted by other allies near the affected ally, in which case some, or all, of the lost vision is recovered.

Silence

EditA unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Silence is also a general term used to refer to  crowd control effects that inhibit the casting of abilities.

Interrupts:	Interrupts all  channeled and charged abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses.

• Champions with silence: Blitzcrank, Cho'Gath, Fiddlesticks, Garen, Malzahar, Soraka

The following crowd control types combine silence with additional effects:

•  Polymorph
  • Champions with polymorph: Lulu

Sleep

Drowsy

EditA unit that is drowsy is gradually  slowed over the duration, and will fall  asleep thereafter.

Removing drowsy or being  unstoppable or  immune to crowd control at its end will prevent  sleep from occurring. Activating a  spell shield does not.

Interrupts:	Drowsy does not interrupt any actions.
Reduction:	The duration of drowsy is unaffected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses.

• Champions with drowsy:   Lillia,   Zoe.

EditA unit that is asleep is  stunned. Sleep occurs after the duration of  drowsiness finishes.

A unit that is stunned combines the effects of  Disarm,  Root and  Silence.

• A unit that is disarmed is unable to declare  basic attack commands.
• A unit that is rooted is unable to cast movement commands or activate  dashing or  blinking spells for the duration.
• A unit that is silenced cannot cast abilities, activate items or use the summoner spells Flash, Teleport, Hexflash, and Mark / Dash for the duration.

Interrupts:	Falling asleep interrupts attack windups ( unstoppable basic attack exception) and all  channeled and charged abilities.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity and  Unstoppability.
Removal:	Removed by  Cleanses and taking non- persistent damage from non- minions.

• Champions with sleep:  Lillia,   Zoe.

Slow

EditA unit that is slowed has reduced  movement speed for the duration. Slow percentages cannot reduce a target below  110 movement speed. Some slows will instead modify the target's movement speed to a static value, which may not be further reduced nor increased.

Only the slow with the highest value is taken into movement speed calculations. All additional slows are ignored until the higher-valued slow wears off.

Interrupts:	Does not interrupt any abilities.
Reduction:	The duration is affected by  Tenacity. The strength is reduced by  slow resist, which  stacks multiplicatively.
Resist:	Resisted by  crowd control immunity and  slow immunity.
Removal:	Removed by  Cleanses, Garen's Decisive Strike, Master Yi's Highlander and Nunu's Biggest Snowball Ever!.

• Champions with slow: Aatrox, Ahri, Akali, Anivia, Aphelios, Ashe, Aurelion Sol, Azir, Bard, Braum, Caitlyn, Camille, Cassiopeia, Cho'Gath, Corki, Darius, Diana, Draven , Dr. Mundo, Ekko, Evelynn, Fiddlesticks, Fiora, Fizz, Galio, Gangplank, Gnar, Gragas, Graves, Hecarim, Heimerdinger, Illaoi, Irelia, Ivern, Janna, Jarvan IV, Jayce, Jhin, Jinx, Kalista, Karma, Karthus, Kassadin, Kayle, Kayn, Kha'Zix, Kindred, Kled, Kog'Maw, Lee Sin, Leona, Lissandra, Lulu, Lux, Malphite, Maokai, Miss Fortune, Mordekaiser, Morgana,  Nami,  Nasus,  Nautilus, Nocturne, Nunu, Olaf, Orianna, Ornn, Pantheon, Poppy, Pyke, Quinn, Rakan, Rammus, Rengar, Rumble, Sejuani, Sett, Shaco, Singed, Sion, Skarner, Sona, Soraka, Swain, Sylas, Syndra, Tahm Kench, Taliyah, Talon, Teemo, Thresh, Tristana, Trundle, Tryndamere, Twisted Fate, Twitch, Urgot, Varus, Vel'Koz, Viktor, Vladimir, Volibear, Warwick, Xerath, Xin Zhao, Yorick, Yuumi, Zac, Zed, Ziggs, Zilean, Zoe, Zyra.
  • Galio and Shaco are the only ones who can reduce movement speed below 110, to 60 and 100 respectively. This movement speed is set and cannot be modified, but it can still be cleansed and mitigated by slow-immunity.
• Items with slow: Bilgewater Cutlass, Blade of the Ruined King,  Frozen Mallet, Hextech Gunblade, Hextech GLP-800, Iceborn Gauntlet, Randuin's Omen, Righteous Glory, Rylai's Crystal Scepter, Twin Shadows, Zeke's Convergence.
• Monsters with slow: Baron Nashor, Ocean Drake.
• Summoner Spells with slow: Chilling Smite, Exhaust.
• Runes with slow: Glacial Augment.

Snare/Root

EditA unit that is rooted is unable to cast movement commands or activate  dashing or  blinking spells for the duration.

Moving includes movement commands, as well as all  dash and  blink abilities - including summoner spells Flash, Teleport, Hexflash, and Mark / Dash, plus a number of additional cases. Root does not disable nor interrupt Recall / Empowered Recall.

Interrupts:	Interrupts movement channels unless otherwise stated.
Reduction:	The duration is affected by  Tenacity.
Resist:	Resisted by  crowd control immunity.
Removal:	Removed by  Cleanses.

• Champions with root: Aphelios, Caitlyn, Ivern, Jhin, Jinx, Karma, LeBlanc, Lee Sin, Leona, Lissandra, Lux, Maokai, Morgana, Nautilus, Neeko,