Action modifiers (more commonly known as disables or crowd control) prevent or reduce the effectiveness of actions the afflicted unit can take.

Types of action modifiers

  • Blind
    • Makes the target always miss with auto attacks.
    • Has no effects on abilities and will not interrupt them or prevent their damage.
  • Charm
    • Forces the target to walk towards the champion who applied this crowd control.
    • Prevents controlled movements, auto attacks, and the use of abilities.
    • Will interrupt channeled abilities.
    • Will slow the target.
  • Fear
    • Forces the target to run around randomly around its location.
    • Prevents controlled movement, auto attacks, and the use of abilities.
    • Will interrupt channeled abilities.
    • Will slow the target.
  • Knockup
    • Knocks the target into the air but does not change their location.
    • Prevents movement, auto attacks, and the use of abilities while in the air.
    • Will interrupt channeled abilities.
    • Cannot be removed by Cleanse Cleanse or reduced by Tenacity.
  • Polymorph
    • Prevents the use of most abilities.
    • Prevents auto attacks.
  • Silence
    • Prevents use of most spells and abilities.
    • Does not stop auto attacks.
    • Will interrupt channeled abilities.
  • Stun
    • Immobilizes and prevents actions.
    • Will interrupt channeled abilities.
    • Blocks use of most abilities.
  • Suppression
    • Immobilizes and prevents actions.
    • Will interrupt channeled abilities.
    • Prevents use of most abilities.
    • Cannot be removed by Cleanse Cleanse or reduced by Tenacity.
  • Taunt
    • Forces the target to try to auto attack the taunting champion, making him unable to do anything else.
    • Will interrupt channeled abilities.
    • Can force movement because target will chase to try to autoattack while taunted.

Table of action modifiers

Action removal modifiers

These modifiers will take away a champion's ability to perform certain actions, such as: hit with auto attacks, move, use abilities/items, or combinations of these.

Blinds, knockups, silences, stuns and suppressions

Source Name Description Duration Notes
Summoner Spells
Exhaust Exhaust Reduce  damage and movement by 30% and attackspeed by 50%.  3 seconds Also slows
Champion Abilities
Alistar OriginalSquare Alistar Pulverize Pulverize Knockup and Stun 1 + 0.5 seconds
Amumu OriginalSquare Amumu Bandage Toss Bandage Toss Stun 1 second
Anivia OriginalSquare Anivia Flash Frost Flash Frost Stun 1 second Upon detonation
Annie OriginalSquare Annie Pyromania Pyromania Stun 1.75 seconds Applied on damaging spell cast
Ashe OriginalSquare Ashe Enchanted Crystal Arrow Enchanted Crystal Arrow Stun 3 seconds Applies only to the target hit directly
Blitzcrank OriginalSquare Blitzcrank Rocket Grab Rocket Grab Stun ~0.5 sec Pulls target towards Blitzcrank
Power Fist Power Fist Knockup 2 seconds
Static Field Static Field Silence 0.5 seconds
Brand OriginalSquare Brand Sear Sear Stun 2 seconds On targets set ablaze
Cassiopeia OriginalSquare Cassiopeia Petrifying Gaze Petrifying Gaze Stun 2 seconds Enemies with their backs turned to Cassiopeia are slowed instead
Cho'Gath OriginalSquare Cho'Gath Rupture Rupture Knockup 1 second Also applies a slow
Feral Scream Feral Scream Silence (1.5/1.75/2/2.25/2.5) seconds
Fizz OriginalSquare Fizz Chum the Waters Chum the Waters Knockup 1
Fiddlesticks OriginalSquare Fiddlesticks Dark Wind Dark Wind Silence 1.2 seconds Each bounce refreshes the silence
Garen OriginalSquare Garen Decisive Strike Decisive Strike Silence 2.5s
Heimerdinger OriginalSquare Heimerdinger CH-1 Concussion Grenade CH-1 Concussion Grenade Blind (1/1.5/2/2.5/3) seconds
Stun 1.5 seconds Only affects targets directly hit
Irelia OriginalSquare Irelia Equilibrium Strike Equilibrium Strike Stun (1/1.25/1.5/1.75/2) seconds Only targets with higher %HP
Janna OriginalSquare Janna Howling Gale Howling Gale Knockup 0.8 seconds
Jarvan IV OriginalSquare Jarvan IV Dragon Strike Dragon Strike Knockup Only on contact with Demacian Standard Demacian Standard's flag
Jax OriginalSquare Jax Counter Strike Counter Strike Stun 1 second
Kassadin OriginalSquare Kassadin Null Sphere Null Sphere Silence (1/1.4/1.8/2.2/2.6) seconds
Kennen OriginalSquare Kennen Mark of the Storm Mark of the Storm Stun 1 second On receiving third mark
LeBlanc OriginalSquare LeBlanc Sigil of Silence Sigil of Silence
Mimic Sigil of Silence Mimic: Sigil of Silence
Silence 2 seconds When activated by another ability
Leona OriginalSquare Leona Shield of Daybreak Shield of Daybreak Stun 1.25 seconds
Solar Flare Solar Flare Stun 1.5 seconds Only in the center of the AoE
Malphite OriginalSquare Malphite Unstoppable Force Unstoppable Force Knockup 1.5 seconds
Lulu OriginalSquare Lulu Whimsy Whimsy Polymorph (1.5 / 1.75 / 2 / 2.25 / 2.5) seconds
Malzahar OriginalSquare Malzahar Call of the Void Call of the Void Silence (1.4/1.8/2.2/2.6/3) seconds
Nether Grasp Nether Grasp Suppression 2.5 seconds Suppression breaks when Malzahar stops channeling
Morgana OriginalSquare Morgana Soul Shackles Soul Shackles Stun (1/1.5/2) seconds Only if tethered targets, 3 sec after initial activation
Nami OriginalSquare Nami Aqua Prison Aqua Prison Stun 1.25 seconds
Tidal Wave Tidal Wave Knockup Also slows all enemies hit.
Nautilus OriginalSquare Nautilus Depth Charge Depth Charge Stun (1/1.5/2) seconds Also knocks up target and all enemies it passes through
Pantheon OriginalSquare Pantheon Aegis of Zeonia Aegis of Zeonia Stun 1 second
Poppy OriginalSquare Poppy Heroic Charge Heroic Charge Stun 1.5 seconds If pushed into terrain
Renekton OriginalSquare Renekton Ruthless Predator Ruthless Predator Stun 0.75 seconds 1.5 seconds with ≥50 Fury
Riven OriginalSquare Riven Ki Burst Ki Burst Stun 0.75 seconds
Sejuani OriginalSquare Sejuani Glacial Prison Glacial Prison Stun 2 seconds (on first champion hit) Stun duration is halved in an area around the first champion is strikes. Applies Frost Frost
Sion OriginalSquare Sion Cryptic Gaze Cryptic Gaze Stun 1.5 seconds
Skarner OriginalSquare Skarner Impale Impale Suppression 1.75 seconds Skarner may also drag the target during the suppression
Sona OriginalSquare Sona Crescendo Crescendo Stun 1.5 seconds
Soraka OriginalSquare Soraka Infuse Infuse Silence (1/1.5/2/2.5/3) seconds
Syndra OriginalSquare Syndra Scatter the Weak Scatter the Weak Stun 1.5 seconds Only if the enemy gets hit by a knocked back Dark Sphere Dark Sphere
Taric OriginalSquare Taric Dazzle Dazzle Stun 1.5 seconds
Teemo OriginalSquare Teemo Blinding Dart Blinding Dart Blind (1.5/1.75/2/2.25/2.5) seconds
Twisted Fate OriginalSquare Twisted Fate Gold Card Pick a Card Stun (1/1.25/1.5/1.75/2) seconds Gold Card
Udyr OriginalSquare Udyr Bear Stance Bear Stance Stun 1 second Applied on hit; 6s cooldown per target
Urgot OriginalSquare Urgot Hyper-Kinetic Position Reverser Hyper-Kinetic Position Reverser Suppression 1 second Switches the position of the target and Urgot.
Vayne OriginalSquare Vayne Condemn Condemn Stun 1.5 seconds If pushed into terrain
Veigar OriginalSquare Veigar Event Horizon Event Horizon Stun (1.5/1.75/2/2.25/2.5) seconds Upon first touching the perimeter. Only applies once per cast.
rVi OriginalSquare Vi Assault and Battery Assault and Battery Knockup 1.25 seconds Knocks up all enemies Vi comes in contact with during her dash
Viktor OriginalSquare Viktor Gravity Field Gravity Field Stun 1.5 seconds Upon reaching 3 slow stacks
Chaos Storm Chaos Storm Silence 0.5 seconds Applies only when cast
Warwick OriginalSquare Warwick Infinite Duress Infinite Duress Suppression 1.7 seconds Suppression is broken when Warwick stops channeling
Wukong OriginalSquare Wukong Cyclone Cyclone Knockup Knocks up any one target only once per cast
Xerath OriginalSquare Xerath Mage Chains Mage Chains Stun 1.5 seconds When detonated by another spell
Xin Zhao OriginalSquare Xin Zhao Three Talon Strike Three Talon Strike Knockup Applied on third hit
Zyra OriginalSquare Zyra Stranglethorns Stranglethorns Knockup

Forced action modifiers

A special form of CC, but equally powerful, are the forced action modifiers. These force the target to do something, temporarily rendering the player's input useless. Specifically, taunts force the affected champion to attack the taunting champion, while fear causes the affected champion to simply run around aimlessly for the duration.

Fear, Taunt List
Source Name Description Duration Notes
Champion Abilities
Ahri OriginalSquare Ahri Charm Charm Charm (1/1.25/1.5/1.75/2) seconds
Fiddlesticks OriginalSquare Fiddlesticks Terrify Terrify Fear (1/1.5/2/2.5/3) seconds
Galio OriginalSquare Galio Idol Of Durand Idol Of Durand Taunt 2 seconds
Hecarim OriginalSquare Hecarim Onslaught of Shadows Onslaught of Shadows Fear 1 second Feared enemies run away from Hecarim
Nocturne OriginalSquare Nocturne Unspeakable Horror Unspeakable Horror Fear (1/1.25/1.5/1.75/2) seconds
Rammus OriginalSquare Rammus Frenzying Taunt Puncturing Taunt Taunt (1/1.5/2/2.5/3) seconds
Shaco OriginalSquare Shaco Jack in the Box Jack In The Box Fear (0.5/0.75/1/1.25/1.5) seconds When triggered
Shen OriginalSquare Shen Shadow Dash Shadow Dash Taunt 1.5 seconds
Volibear OriginalSquare Volibear Majestic Roar Majestic Roar Fear 3 seconds Only on minions and monsters
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