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General Guide by FINWolfie

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League of Legends Build Guide Author FINWolfie

In-depth look at Crowd Control

FINWolfie Last updated on December 9, 2013
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Sources

I understand that a lot of the content on this guide comes from

- http://leagueoflegends.wikia.com/wiki/Crowd_control
- http://lol.gamepedia.com/Crowd_control
- http://www.mobafire.com/league-of-legends/wiki/game-mechanics/crowd-control

but these sources are either outdated or incomplete, so I created an updated one.


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What is Crowd Control (CC)?

Crowd control (CC) is the term used to describe an ability, spell or an item effect that temporarily reduces a unit's ability to fight. The term 'crowd control' comes from the ability to control the enemy team during fights, by either restricting their contribution or means to escape. In addition, the use of crowd control can aid in your own survivability: in the same way you can stop them from escaping, you can stop them from following.

Crowd control does not make an enemy untargetable. In the case of Airborne effects, the target is considered to be on the ground for the purposes of skill shots and area of effect damage.


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Types of Crowd Control

Airborne:
Unit that is airborne is unable to control its movement, auto attacks, or cast abilities for the duration. The duration is also affected by tenacity and crowd control reduction and cannot be removed with cleansing effects.

Knockback: A knockback causes the target to be made airborne in a direction away from the point of cast. The duration depends on how fat the target travels, from the minimum of 0.75 seconds (example: Rammus's Powerball) to a maximum of 1.50 seconds (example: Lulu's Wild Growth).
Knockup: A knockup causes the target to be made airborne on the spot. The duration depends on how high the target is thrown into the air, from the minimum of 0.75 seconds (example: Rammus's Powerball) to a maximum of 1.50 seconds (example: Lulu's Wild Growth).
Pull/Fling: These effects cause the target to be made airborne in a direction towards the point of cast (examples: Orianna's Command: Shockwave and Singed's Fling).

Blind: A unit that is blinded will miss its auto-attacks for the duration.
Example: Teemo's Blinding Dart.
Entangle: A unit that is entangled is unable to control its movement or attack for the duration.
Example: Amumu's Curse of the Sad Mummy.
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.

Charm: A unit that is charmed will move toward the source for the duration.
Example: Ahri's Charm.
Fear: A unit that is feared will walk in random directions with reduced movement speed for the duration.
Example: Fiddlesticks's Terrify.
Flee: Targeted unit will move away from the attacker.
Example: Hecarim's Onslaught of Shadows.
Taunt: A unit that is taunted will attempt to attack the source of the taunt for the duration.
Example: Shen's Shadow Dash.
Polymorph: A unit that is pacified cannot attack or cast abilities and has reduced movement speed for the duration.
Unique ability to: Lulu with Whimsy.
Snare: A unit that is snared is unable to control its movement for the duration (occasionally referred to as a Root).
Example: Morgana's Dark Binding.
Silence: A unit that is silenced cannot cast abilities for the duration.
Example: Blitzcrank's Static Field.
Slow: A unit that is slowed has reduced movement speed for the duration.
Example: item; Rylai's Crystal Scepter or champion Janna's
Zephyr.
Stun: A unit that is stunned is unable to control its movement, attack or cast abilities for the duration.
Example: Sion's Cryptic Gaze.
Suppression: A unit that is suppressed is unable to control its movement, attack, cast abilities or use spells (including Cleanse). The duration is also unaffected by crowd control reduction.
Example: Malzahar's Nether Grasp.


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Main Categories

Crowd control effects can be categorized in different ways, these are called the main categories that divide CC abilities and items to Hard and Soft cc effects.

In this first category, they're categorized depending on whether or not the effect removes total control of player's character.

Hard CC Soft CC
- Airborne - Blind
- Forced Action - Entangle
- Stun - Polymorph
- Suppression - Root
- Silence
- Slow

In the second category, cc types are categorized depending on if they interrupt abilities that are being channeled, such as Karthus's Requiem and Katarina's Death Lotus.
- Hard CC - Soft CC
- Airborne - Blind
- Forced Action - Entangle
- Polymorph - Root
- Silence - Slow
- Stun
- Suppression


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Preventing Crowd Control

All types of Crowd Control can be prevented, including knockback, knockup and pull effects.

Master Yi's Highlander prevents all slows for its duration.
Poppy's Diplomatic Immunity prevents all forms of CC for 6/7/8 seconds from everyone but her target.
Morgana's Black Shield prevents all forms of CC for 5 seconds OR until the shield is broken.
Olaf's Ragnarok removes and prevents all forms of CC for 6 seconds.
Banshee's Veil creates a spell shield that can block one spell every 25 seconds.
Sivir's Spell Shield creates a magical barrier for 3 seconds that can block the next enemy spell that hits her.
Nocturne's Shroud of Darkness creates a magical barrier for 1.5 seconds that can block the next enemy spell that hits him.
Hecarim becomes immune to CC during Onslaught of Shadows charge.
Jarvan IV becomes immune to CC during Cataclysm's charge.
Nocturne becomes immune to CC during Paranoia's charge.
Malphite becomes immune to CC during Unstoppable Force's charge.
Vi becomes immune to CC during Assault and Battery's charge.

Crowd control effects can now be received during "unstoppable" movement ultimates (they previously discarded all crowd control effects), but those ultimates will still finish their movement regardless (crowd control effects can persist after the cast finishes)
Affected champions:

- Jarvan IV's Cataclysm
- Nocturne's Paranoia
- Vi's Assault and Battery
- Malphite's Unstoppable Force
- Hecarim's Onslaught of Shadows


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Removing Crowd Control

All forms of Crowd Control can be removed, except knockback, knockup and pull effects.

Champion abilities that remove CC
Alistar - Unbreakable Will removes all forms of CC.
Gangplank - Remove Scurvy removes all forms of CC.
Olaf - Ragnarok removes and prevents all forms of CC.
Master Yi - Highlander removes and prevents all slows.
Evelynn - Dark Frenzy removes all slows.
Garen - Decisive Strike removes all slows.
Lucian - Relentless Pursuit removes all slows.

Items and Summoner spells that remove CC
Cleanse - Removes all CC except suppression.
Mikael's Crucible - Unique Active: Removes all stuns, roots, fears, silences and slows on an allied champion and heals them for 150 + 10% of their missing health. (180 second cooldown).
Mercurial Scimitar - Unique Active - Quicksilver: Removes all debuffs from your champion. (90 second cooldown).
Quicksilver Sash - Unique Active - Quicksilver: Removes all debuffs from your champion. (90 second cooldown).


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Reducing Crowd Control

Crowd control reduction reduces the duration of CC effects by a percentage equal to its value. The reduction will stack multiplicatively with other types of CC duration reduction.

Items

Mercury's Treads: Unique Passive - Tenacity: The duration of stuns, slows, taunts, fears, silences, blinds and immobilizes are reduced by 35%.
Spirit of the Ancient Golem: Unique Passive - Tenacity: The duration of stuns, slows, taunts, fears, silences, blinds and immobilizes are reduced by 35%.
Zephyr: Unique Passive - Tenacity: The duration of stuns, slows, taunts, fears, silences, blinds and immobilizes are reduced by 35%.

Abilities

Dr. Mundo's Burning Agony reduces crowd control by 10/15/20/25/30% while active.
Garen's Courage reduces crowd control by 30% for 2/3/4/5/6 seconds.
Irelia's Ionian Fervor reduces crowd control by 10/25/40% for 1/2/3 nearby enemy champion(s).

Masteries and Summoner Spells

Cleanse reduces crowd control by 65% for 3 seconds.
Legendary Guardian reduces the duration of crowd control effects by 15%.

Slow Potency Reduction
These effects reduce the potency of crowd control. Similar effects stack multiplicatively with each other. They do not reduce the duration of the effect.

Boots of Swiftness Unique Passive - Slow resist: Movement slowing effects are reduced by 25%.
Swiftness : Reduces the effectiveness of slows by 10%.
Sejuani's Frost Armor: Reduces movement-slowing effects on Sejuani by 10/15/20/25% for 2 seconds.


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Self-CC

The following effects are comparable to crowd control, except that the effect is caused voluntarily and affects the user rather than a target.

Self-Knockback: A champion that knockbacks itself and is temporarily unable to attack and issue movement commands. The target may still cast spells.
- Caitlyn: 90 Caliber Net
- Ziggs: Satchel Charge

Self-Root: A champion that roots itself is unable to control its movement and will ignore movement commands (included forced actions, such as fear). A champion that is rooted can still be moved by airborne effects, but it will not break the root.
- Xerath: locus of power

Self-Slow: A champion that slows itself has reduced movement speed. Most of the current examples are connected to a channelled ability, and the slow will end when the abilities have finished casting.
Note! These self-slows can be reduced by Slow potency reduction introduced on chapter 7.
- Garen: Judgment
- Varus: Piercing Arrow
- Vi: Vault Breaker

Self-Silence: A champion that silences itself is unable to cast abilities. They may still attack and use summoner spells.
- Rumble: Junkyard Titan

Self-Stun: The following champions have channeled abilities that the summoner cannot interrupt (contrary to most channels which will be interrupted if you attempt to move, attack or use another ability). This is comparable to a stun.
- Malzahar: Nether Grasp (for the first 0.5 seconds of the duration)
- Urgot: Hyper-Kinetic Position Reverser
- Warwick: Infinite Duress


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Unique CC-related trivia

- Sona's Crescendo causes the target to dance.

- The highest continuous form of crowd control reduction can be achieved by Irelia's Ionian Fervor with 3 nearby foes, Tenacity (item passive), and Legendary Guardian for 66.85%.

- Tryndamere is the only champion in the game that can activate an ability while disabled that doesn't remove the disable.


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List of CC abilities

Knockbacks


Alistar's - Headbutt
Draven's - Stand Aside
Gragas's - Explosive Cask
Janna's - Monsoon
Lee Sin's - Dragon's Rage
Lulu's - Wild Growth
Maokai's - Arcane Smash
Poppy's - Heroic Charge
Rammus's - Powerball
Riven's - Broken Wings 3rd part of the spell only
Shyvana's - Dragon's Descent
Syndra's - Scatter the Weak
Thresh's - Flay
Tristana's - Buster Shot
Vayne's - Condemn
Vi's - Vault Breaker
Xin Zhao's - Crescent Sweep only targets that aren't challenged by his passive
Zac's - Elastic Slingshot and let's bounce
Ziggs's - Satchel Charge


Knockups


Aatrox's - Dark Flight
Alistar's - Pulverize
Blitzcrank's - Power Fist
Cho'Gath's - Rupture
Janna's - Howling Gale
Jarvan IV's - Dragon Strike only when cast on Demacian Standard
Lulu's - Wild Growth
Malphite's - Unstoppable Force
Nami's - Tidal Wave
Nautilus's - Depth Charge
Rammus's - Powerball
Sejuani's - Arctic Assault
Vi's - Assault and Battery
Wukong's - Cyclone
Xin Zhao's - Three Talon Strike 3rd part of the spell only
Zac's - let's bounce

Pull/Fling



Blitzcrank's - Rocket Grab
Darius's - Apprehend
Diana's - Moonfall
Nautilus's - Dredge Line
Orianna's - Command: Shockwave
Singed's - Fling
Volibear's - Rolling Thunder

Blind


Graves's - Smoke Screen Vision blind only
Nocturne's - Paranoia Vision blind only
Quinn's - Blinding Assault
Teemo's - Blinding Dart

Fear


Fiddlesticks's - Terrify
Shaco's - Jack In The Box
Volibear's - Majestic Roar only works on minions and monsters

Taunt


Galio's - Idol of Durand
Rammus's - Puncturing Taunt
Shen's - Shadow Dash

Snare


Roots and Snares are the same thing, Root and Snare have no mechanical difference in-game.Also, Binds/Bindings count as snares as they have no mechanical difference in-game.
Jinx's - Flame Chompers!
Karma's - Focused Resolve
Leona's - Zenith Blade
Lissandra's - Ring of Frost
Lux's - Light Binding
Maokai's - Twisted Advance
Morgana's - Dark Binding
Nautilus's - Staggering Blow
Rengar's - Bola Strike only if cast with full ferocity
Ryze's - Rune Prison
Swain's - Nevermove
Varus's - Chain of Corruption
Zyra's - Grasping Roots

Silence


Blitzcrank's - Static Field
Cho'Gath's - Feral Scream
Fiddlesticks's - Dark Wind
Garen's - Decisive Strike
Kassadin's - Null Sphere
LeBlanc's - sigil of silence combined with any of her other abilities
Malzahar's - Call of the Void
Talon's - cutthroat

Slows


From Champion Abilites
Aatrox's - Blades of Torment
Akali's - Twilight Shroud
Anivia's - Flash Frost and Glacial Storm
Ashe's - Frost Shot and Volley and Enchanted Crystal Arrow
Cassiopeia's - Miasma and Petrifying Gaze only when facing away from Cassiopeia
Cho'Gath's - Rupture after landing from knockup
Diana's - Moonfall
Dr. Mundo's - Infected Cleaver
Draven's - Stand Aside
Fizz's - Chum the Waters
Galio's - Resolute Smite
Gangplank's - Grog Soaked Blade
Gragas's - Body Slam
Irelia's - Equilibrium Strike only when her target has lower life % left than Irelia herself
Janna's - Zephyr
Jarvan IV's - Golden Aegis
Jayce's - To The Skies!
Jinx's - Zap!
Karma's - Inner Flame only with mantra enhancement
Karthus's - Wall of Pain
Kassadin's - Force Pulse
Kayle's - Reckoning
Kha'Zix's - Unseen Threat
Kog'Maw's - Void Ooze
Lee Sin's - Cripple
Leona's - Solar Flare
Lissandra's - Frozen Tomb and Ice Shard
Lulu's - Glitterlance
Lux's - Lucent Singularity
Malphite's - Seismic Shard
Miss Fortune's - Make it Rain
Morgana's - Soul Shackles
Nami's - Tidal Wave
Nasus's - Wither
Nautilus's - Riptide
Nunu's - Ice Blast and Absolute Zero
Olaf's - Undertow
Quinn's - Vault
Rumble's - Electro-Harpoon and The Equalizer
Sejuani's - Permafrost and Glacial Prison
Shaco's - Two-Shiv Poison
Sona's - Song of Celerity with Power Chord - Tempo
Thresh's - The Box
Tristana's - Rocket Jump
Trundle's - Pillar of Ice
Tryndamere's - Mocking Shout only slows enemies with their backs turned on him
Twisted Fate's - Pick A Card only red card
Twitch's - Venom Cask
Varus's - Hail of Arrows
Viktor's - Gravity Field
Vladimir's - Sanguine Pool
Volibear's - Majestic Roar
Xin Zhao's - Audacious Charge
Yorick's - Omen of Pestilence
Zac's - Stretching Strike
Zed's - Shadow Slash only from Living Shadow
Zilean's Time Warp when cast on enemy champion
From items
Rylai's Crystal Scepter
Frozen Mallet
Iceborn Gauntlet
Twin Shadows
Randuin's Omen
Blade of the Ruined King

Suppression


Malzahar's - Nether Grasp
Warwick's - Infinite Duress

Stuns


Amumu's - Bandage Toss
Anivia's - Flash Frost
Annie's - Pyromania
Brand's - Sear only when the target is already in a blaze
Cassiopeia's - Petrifying Gaze
Elise's - Cocoon
Heimerdinger's - CH-1 Electron Storm Grenade
Irelia's - Equilibrium Strike only if the target has higher health % than Irelia herself
Jax's - Counter Strike
Kennen's - Mark of the Storm
Leona's - Shield of Daybreak and Solar Flare
Lissandra's - Frozen Tomb
Nami's - Aqua Prison
Pantheon's - Aegis of Zeonia
Poppy's - Heroic Charge only when the target hits a terrain
Renekton's - Ruthless Predator
Riven's - Ki Burst
Sejuani's - Glacial Prison
Sion's - Cryptic Gaze
Sona's - Crescendo
Syndra's - Scatter the Weak in combination with Dark Sphere
Taric's - Dazzle
Twisted Fate's - Pick A Card golden card only
Udyr's - Bear Stance
Vayne's - Condemn only when the target hits a terrain
Viktor's - Gravity Field only after being inside it for long enough
Xerath's - mage chains in combination with one of his other abilities

Unique to champion CCs


Polymorf

- Lulu's - Whimsy only when cast on enemy champion

Flee

- Hecarim's - Onslaught of Shadows

Charm

- Ahri's - Charm

Entangle

- Amumu's - Curse of the Sad Mummy

Suppression

- Urgot's - Hyper-Kinetic Position Reverser

Suppression

- Skarner's - Impale


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