Debuffs

About debuffs

Negative effects you can apply to enemies. Each entry below lists every Set 17 source — champions, traits, items, and augments — that inflicts that effect. Click an effect's name for the full breakdown, including what counters it.

See also: Buffs — positive effects you can stack on your own units — and Economy for player-side resource mechanics.

Stun

Disables the target for a duration: no movement, no attacks, no ability casts.

Champions (4)

  • Shield of Daybreak ability
    Shield of Daybreak
    Gain Ability Power  Shield for 4 seconds. Bash the current target, dealing 100 / 150 / 225 ArmorMagic Resist magic damage and stunning them for 1.75 / 1.75 / 2 seconds.
  • Counter Star-ike ability
    Counter Star-ike
    Enter a defensive stance for 3 seconds, reducing incoming damage by 20 / 25 / 30 and gaining 400 / 450 / 500 Ability Power Shield. When the stance ends, strike all nearby enemies, dealing Armor Magic Resist magic damage and Stunning them for 1 / 1.25 / 1.5 second(s).
  • Grasp of Convergence ability
    Grasp of Convergence
    Passive: Gain 50% more max Health from all sources.
    
    Active: Converge an X-shape of vines on the target, dealing Ability Power  magic damage to each enemy hit and Stunning them for 1.5 / 1.5 / 1.75 seconds. 
    
    N.O.V.A. Strike: Send forth a wave of dragons that stun all enemies for 1.5 / 1.5 / 1.75 seconds. For the rest of combat, Maokai's attacks deal Max Health  bonus physical damage.
  • Psionic Crush ability
    Psionic Crush
    Hurl a chunk of magnetic debris at the nearest target without one, dealing 300 / 450 / 999 Ability Power magic damage and sticking it to them. If an enemy with debris dies, it passes to the nearest enemy without one.
    
    Every 5 casts, instead rip off all debris dealing 120 / 180 / 999 Ability Power magic damage, then crush all the debris onto the target, dealing 720 / 1100 / 9999 Ability Power magic damage and briefly stunning them.

Artifacts (3)

    • +200 HP
    • +20 Armor
    Eternal Winter description

    Enemies who damage the holder are 20% Chilled for 1.5 seconds. After 7 Chills from this item, the attacker is Stunned instead (Cooldown: 15 seconds). [Unique - only 1 per champion] Chill: reduce Attack Speed Stun: cannot move, attack, or cast Abilities

    • +80 Armor
    • +80 MR
    • +140% AD
    Silvermere Dawn description

    Grants immunity to Stuns and the holder's attacks Stun the target for 0.8 seconds. The holder's Attack Speed is locked at 0.5.

    • +500 HP
    • +20 Armor
    • +20 MR
    The Indomitable description

    The holder's Move Speed is drastically reduced. Gain 15% max Health, stun immunity, and pull the current target into melee range.

Anima items (2)

    • +550 HP
    • +30 Armor
    • +30 MR
    Deep Freeze description

    The first time you fall below 90%, 60%, 40%, and 20% health, gain a 20% max health shield for 4 seconds. When this happens, release a frost nova that stuns enemies within 2 hexes for 2 seconds and deals magic damage equal to 15% of their max Health. The radius increases by 1 each nova. Recommended Roles: Attack or Magic Tank

    • +250 HP
    • +30 Armor
    • +30 MR
    Iceblast Armor description

    The first time you fall below 70% and 35% health, gain a 25% max health shield for 4 seconds and release a frost nova that stuns enemies within 3 hexes for 2 seconds. Recommended Roles: Attack or Magic Tank

Graves items (1)

  • Shockwave description

    Combat Start: Unleash a shockwave forward that deals 15% of Graves' max Health as magic damage and stun enemies hit for 2 seconds.

Augments (2)

  • Description
    After 8 seconds of combat, stun the enemy team for 1.5 seconds. Repeat this after 18 seconds of combat.
    
    TFT Macao Open, 2024
  • Description
    Gain a Leona. Your strongest Leona becomes an Attack Fighter that dashes through enemies to deal physical damage, stunning the first target hit.

Slow

Reduces the target's attack speed for a duration. Patch 17.1 renamed this keyword from "Chill"; it does not affect movement speed.

Champions (2)

  • Chemical Rage ability
    Chemical Rage
    Heal Max Health Ability Power over 2 seconds. Then, deal Ability Power  magic damage to target and enemies adjacent to them and 30% Chill them for 2 seconds.
    Slow
    Slow: Reduce Attack Speed
  • Reality Tear ability
    Reality Tear
    Passive: On cast, attacks gain Max Health Ability Power stacking bonus magic damage. Starting from the third cast, gain true damage instead.
    
    Active: Gain 200 / 250 / 3456 Max HealthAbility Power Shield for 3 seconds, then slice open a rift on the largest group of champions dealing the Passive's bonus damage to all enemies within. Enemies have their Attack Speed slowed by 50 / 50 / 99% while allies within gain 80 / 80 / 999% Attack Speed, both rapidly decaying over 3 seconds. Shen always gains his rift's full bonus for this duration.

Artifacts (1)

    • +65% AS
    Mittens description

    Shrinks the holder, granting them increased movement speed and immunity to Slow, Burn, and Wound.

Knock Up

Briefly lifts the target into the air, interrupting their action. Set-17 sources include the Fizz and Rhaast carries, the frontliners Blitzcrank, Rek'Sai, Aatrox, Meepsie, and Nunu, and Samira herself — both via her active ("Jump and Jive") and the passive that triggers off any ally-applied knock-up.

Champions (8)

  • Stellar Slash ability
    Stellar Slash
    Heal 325 / 400 / 650 Ability Power, then deal 80 / 120 / 180 Attack DamageArmor physical damage to the current target.
    
    N.O.V.A. Strike: Cleave the battlefield, briefly knocking up all enemies and dealing Attack Damage Armor physical damage.
  • Upheaval ability
    Upheaval
    Heal Max Health Ability Power, then briefly knock up adjacent enemies and deal 80 / 120 / 180 Ability Power magic damage.
  • Meep Impact ability
    Meep Impact
    Heal Max Health Ability Power Health over 3 seconds. Slam the target, dealing 160 / 240 / 360 Ability Power magic damage and knocking up for 1.5 / 1.75 / 2 seconds. The impact creates meepwaves that deal 50% of these effects in the target's row.
    
    Meep Bonus: Meeps water Meepsie's flower, increasing all incoming Healing and Shielding by ? .
  • Meep Bait ability
    Meep Bait
    Dash through the current target, dealing Ability Power  magic damage. Every third cast also summons a Mega Meep after a delay, briefly knocking the target up and dealing Ability Power  magic damage. Adjacent enemies take 50% damage.
    
    Meep Bonus: Add ? Meep to the bait, increasing Mega Meep damage by Ability Power .
  • Divine Scythe ability
    Divine Scythe
    Gain 20% Durability for 2 seconds, healing Ability Power  over the duration. Afterwards, slash forward in a line, dealing 120 / 180 / 300 Attack Damage physical damage to enemies hit and knocking them up for 1 second.
  • Jump and Jive ability
    Jump and Jive
    Passive: Whenever an enemy is knocked up, shoot them, dealing Attack Damage Ability Power physical damage and entering The Groove for 3 seconds.
    
    Active: Unleash a volley of bullets at the target, dealing 375 / 560 / 900 Attack Damage physical damage and knocking up for 1 seconds.
  • Calamity ability
    Calamity
    Gain 475 / 575 / 2000 Ability Power Shield for 4 seconds. Summon an astrolabe to crash down on a nearby hex, dealing 120 / 180 / 2000 Ability Power magic damage to enemies within 2 hexes. Then, push the astrolabe towards the end of the board, dealing 100 / 150 / 2000 Ability Power magic damage. All enemies hit by the astrolabe are knocked up for 1.5 / 1.75 / 8 seconds.
  • Party Crasher ability
    Party Crasher
    Passive: Every 2 / 2 / 0.5 seconds, call down a bolt on the highest Health nearby enemy that deals 60 / 90 / 150 Ability Power magic damage.
    
    Active: Summon a disco ball at the largest clump of enemies, then knock up the current target into it, dealing 150 / 225 / 999 Ability Power magic damage. They crash down into the disco ball, dealing 175 / 265 / 5000 Ability Power magic damage in a three hex radius. Enter The Groove for 1 second per enemy hit.

Shred

Reduces the target's Magic Resist (commonly by 30%, though the amount varies by source) for a duration, or for the rest of combat with some effects.

Traits (1)

  • Description
    Aatrox: Ally Damage 30% Shred and Sunders enemies
    Caitlyn: Grant allies 20% Attack Speed
    Akali: Allies gain Precision
    Maokai: Allies heal 12% max Health
    Kindred: Shield the strongest Tank for 800
    Emblem: Allies deal 10% stacking bonus true damage

Completed items (2)

    • +250 HP
    • +35 MR
    • +15 AP
    Ionic Spark description

    30% Shred enemies within 2 hexes. When enemies cast an Ability, deal magic damage equal to 150% of the Mana spent Shred: Reduce Magic Resist

    Needlessly Large RodNegatron Cloak
    • +15% AS
    • +35 AP
    • +1 Mana Regen
    Void Staff description

    Damage from attacks and Abilities 30% Shred the target for 5 seconds. This effect does not stack. Shred: Reduce Magic Resist

    Recurve BowTear of the Goddess

Radiant items (2)

    • +500 HP
    • +70 MR
    • +30 AP
    Radiant Ionic Spark description

    30% Shred enemies within 2 hexes. When enemies cast an Ability, deal magic damage equal to 300% of the Mana spent. [Direct damage item] Shred: Reduce Magic Resist

    • +30% AS
    • +75 AP
    • +2 Mana Regen
    Radiant Void Staff description

    Damage from attacks and Abilities 30% Shred the target for the rest of combat. This effect does not stack. Shred: Reduce Magic Resist

Artifacts (1)

    • +60 AP
    • +2 Mana Regen
    Blighting Jewel description

    Dealing magic damage reduces the target's Magic Resist by 6. If their Magic Resist is 0, grant the holder 2 Mana instead. Ability damage can only trigger on each enemy once every 0.5 seconds.

Anima items (2)

    • +15 Armor
    • +15 MR
    • +20% AD
    • +20 AP
    Cyclonic Slicers description

    Gain 3 orbiting razors. Razors deal ? magic damage, and 30% Shred and Sunder enemies for 4 seconds. Deal 10% increased damage to Shredded or Sundered enemies. Damage increases based on Stage. Recommended Roles: Attack or Magic Fighter

    • +40 Armor
    • +40 MR
    • +30% AD
    • +30 AP
    Unceasing Cyclone description

    Gain 6 orbiting razors. Razors deal ? true damage, and 30% Shred and Sunder enemies for the rest of combat. Deal 30% increased damage to Shredded or Sundered enemies. Damage increases based on Stage. Recommended Roles: Attack or Magic Fighter

Psionic items (2)

    • +15% AS
    • +10% Omnivamp
    Malware Matrix description

    Attack Champion: Dealing physical damage to an enemy reduces the target's Armor by 2. Magic Champion: Dealing magic damage to an enemy reduces the target's Magic Resist by 2. Recommended users: Master Yi and Pyke. Ability Damage Cooldown: 0.75 seconds.

    • +15% AS
    • +10% Omnivamp
    Malware Matrix description

    Attack Champion: Dealing physical damage to an enemy reduces the target's Armor by 2. Magic Champion: Dealing magic damage to an enemy reduces the target's Magic Resist by 2. At (4): If the holder is Psionic, every 3rd attack cleaves, dealing 75 Attack Damage physical damage to nearby enemies. Recommended users: Master Yi and Pyke. Ability Damage Cooldown: 0.75 seconds.

Graves items (2)

  • Ripper Bullets description

    Attacks reduce enemy Armor and Magic Resistance by 1.

  • Ripper Bullets+ description

    Attacks reduce enemy Armor and Magic Resistance by 2.

Sunder

Reduces the target's Armor for a duration.

Traits (1)

  • Description
    Aatrox: Ally Damage 30% Shred and Sunders enemies
    Caitlyn: Grant allies 20% Attack Speed
    Akali: Allies gain Precision
    Maokai: Allies heal 12% max Health
    Kindred: Shield the strongest Tank for 800
    Emblem: Allies deal 10% stacking bonus true damage

Completed items (2)

    • +250 HP
    • +20 MR
    Evenshroud description

    30% Sunder enemies within 2 hexes. Gain 15 Armor and Magic Resist for the first 15 seconds of combat. Sunder: Reduce Armor

    Negatron CloakGiant's Belt
    • +15% AD
    • +20% AS
    • +20% Crit
    Last Whisper description

    Damage from attacks and Abilities 30% Sunder the target for 3 seconds. This effect does not stack. Sunder: Reduce Armor

    Recurve BowSparring Gloves

Radiant items (2)

    • +500 HP
    • +40 MR
    Radiant Evenshroud description

    30% Sunder enemies within 3 hexes. Gain 50 Armor and Magic Resist for the first 20 seconds of combat. Sunder: Reduce Armor

    • +45% AD
    • +40% AS
    • +40% Crit
    Radiant Last Whisper description

    Damage from attacks and Abilities 30% Sunder the target for the rest of combat. This effect does not stack. Sunder: Reduce Armor

Anima items (2)

    • +15 Armor
    • +15 MR
    • +20% AD
    • +20 AP
    Cyclonic Slicers description

    Gain 3 orbiting razors. Razors deal ? magic damage, and 30% Shred and Sunder enemies for 4 seconds. Deal 10% increased damage to Shredded or Sundered enemies. Damage increases based on Stage. Recommended Roles: Attack or Magic Fighter

    • +40 Armor
    • +40 MR
    • +30% AD
    • +30 AP
    Unceasing Cyclone description

    Gain 6 orbiting razors. Razors deal ? true damage, and 30% Shred and Sunder enemies for the rest of combat. Deal 30% increased damage to Shredded or Sundered enemies. Damage increases based on Stage. Recommended Roles: Attack or Magic Fighter

Psionic items (2)

    • +15% AS
    • +10% Omnivamp
    Malware Matrix description

    Attack Champion: Dealing physical damage to an enemy reduces the target's Armor by 2. Magic Champion: Dealing magic damage to an enemy reduces the target's Magic Resist by 2. Recommended users: Master Yi and Pyke. Ability Damage Cooldown: 0.75 seconds.

    • +15% AS
    • +10% Omnivamp
    Malware Matrix description

    Attack Champion: Dealing physical damage to an enemy reduces the target's Armor by 2. Magic Champion: Dealing magic damage to an enemy reduces the target's Magic Resist by 2. At (4): If the holder is Psionic, every 3rd attack cleaves, dealing 75 Attack Damage physical damage to nearby enemies. Recommended users: Master Yi and Pyke. Ability Damage Cooldown: 0.75 seconds.

Graves items (3)

  • Meltthrough description

    Every second, reduce the Armor of enemies within 2-hexes by 4, doubled for adjacent enemies.

  • Ripper Bullets description

    Attacks reduce enemy Armor and Magic Resistance by 1.

  • Ripper Bullets+ description

    Attacks reduce enemy Armor and Magic Resistance by 2.

Wound

Reduces healing the target receives by 33% for a duration.

Champions (1)

  • Star Strike ability
    Star Strike
    Reposition next to the target to strike the most enemies. Then throw 5 piercing kunai, each dealing 43 / 65 / 97 Attack Damage physical damage to the first enemy hit, reduced to Attack Damage  for each subsequent target. Kunai remove 1 Armor, 2 if they crit.
    
    N.O.V.A. Strike: Slice all enemies, applying Wound and a bleed that deals Attack Damage  physical damage each second. Kunai increase the damage of the bleed by 12%.

Completed items (3)

    • +150 HP
    • +20 AP
    • +1 Mana Regen
    Morellonomicon description

    Attacks and Abilities deal 1% Burn and 33% Wound to enemies for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Needlessly Large RodGiant's Belt
    • +45% AS
    Red Buff description

    Attacks and Abilities 1% Burn and 33% Wound enemies for 5 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Recurve BowRecurve Bow
    • +150 HP
    • +20 Armor
    Sunfire Cape description

    Gain 8% max Health. Every 2 seconds, deal 1% Burn and 33% Wound to an enemy within 2 hexes for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Chain VestGiant's Belt

Radiant items (3)

    • +300 HP
    • +35 AP
    • +2 Mana Regen
    Radiant Morellonomicon description

    Attacks and Abilities deal 2% Burn and 33% Wound to enemies for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    • +80% AS
    Radiant Red Buff description

    Attacks and Abilities 2% Burn and 33% Wound enemies for 5 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    • +300 HP
    • +40 Armor
    Radiant Sunfire Cape description

    Gain 16% max Health. Every 2 seconds, deal 2% Burn and 33% Wound to an enemy within 2 hexes for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: reduces healing received

Artifacts (1)

    • +65% AS
    Mittens description

    Shrinks the holder, granting them increased movement speed and immunity to Slow, Burn, and Wound.

Anima items (2)

    • +40% AD
    • +45 AP
    • +5 Mana Regen
    Evolved Embershot description

    For every 15 mana spent, fire a projectile at a nearby enemy dealing ? + 50% of the holder's Ability Power magic damage, and applying 1% Burn and 33% Wound to enemies for 10 seconds. Each projectile leaves a lingering field that deals ? magic damage to enemies each second. Damage increases based on Stage. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received Recommended Roles: Magic Caster

    • +15% AD
    • +45 AP
    • +4 Mana Regen
    Searing Shortbow description

    For every 20 mana spent, fire a projectile at a nearby enemy, dealing ? + 75% of the holder's Ability Power magic damage and applying 1% Burn and 33% Wound to enemies for 3 seconds. Damage increases based on Stage. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received Recommended Role: Magic Caster

Burn

Deals a percent of the target's maximum Health as true damage every second. Most burn sources also apply Wound, which reduces healing received — together they form the standard answer to high-Health frontlines. Standard craftable burn items in Set 17: Morellonomicon (on hit), Red Buff (on hit), and Sunfire Cape (passive AoE every 2s). Searing Shortbow (per 20 mana spent) is a trait-exclusive Anima Weapon (from the Anima trait), not a craftable.

Completed items (3)

    • +150 HP
    • +20 AP
    • +1 Mana Regen
    Morellonomicon description

    Attacks and Abilities deal 1% Burn and 33% Wound to enemies for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Needlessly Large RodGiant's Belt
    • +45% AS
    Red Buff description

    Attacks and Abilities 1% Burn and 33% Wound enemies for 5 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Recurve BowRecurve Bow
    • +150 HP
    • +20 Armor
    Sunfire Cape description

    Gain 8% max Health. Every 2 seconds, deal 1% Burn and 33% Wound to an enemy within 2 hexes for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    Chain VestGiant's Belt

Radiant items (3)

    • +300 HP
    • +35 AP
    • +2 Mana Regen
    Radiant Morellonomicon description

    Attacks and Abilities deal 2% Burn and 33% Wound to enemies for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    • +80% AS
    Radiant Red Buff description

    Attacks and Abilities 2% Burn and 33% Wound enemies for 5 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received

    • +300 HP
    • +40 Armor
    Radiant Sunfire Cape description

    Gain 16% max Health. Every 2 seconds, deal 2% Burn and 33% Wound to an enemy within 2 hexes for 10 seconds. Burn: Deals a percent of the target's max Health as true damage every second Wound: reduces healing received

Artifacts (1)

    • +65% AS
    Mittens description

    Shrinks the holder, granting them increased movement speed and immunity to Slow, Burn, and Wound.

Anima items (2)

    • +40% AD
    • +45 AP
    • +5 Mana Regen
    Evolved Embershot description

    For every 15 mana spent, fire a projectile at a nearby enemy dealing ? + 50% of the holder's Ability Power magic damage, and applying 1% Burn and 33% Wound to enemies for 10 seconds. Each projectile leaves a lingering field that deals ? magic damage to enemies each second. Damage increases based on Stage. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received Recommended Roles: Magic Caster

    • +15% AD
    • +45 AP
    • +4 Mana Regen
    Searing Shortbow description

    For every 20 mana spent, fire a projectile at a nearby enemy, dealing ? + 75% of the holder's Ability Power magic damage and applying 1% Burn and 33% Wound to enemies for 3 seconds. Damage increases based on Stage. Burn: Deals a percent of the target's max Health as true damage every second Wound: Reduces healing received Recommended Role: Magic Caster

Bleed

Damage dealt over multiple seconds as flat physical or magic damage, AD- or AP-scaled. Distinct from Burn (% max-Health true damage). Set-17 sources include Talon's stab, Akali's bleed (N.O.V.A. capstone), the Stargazer Serpent constellation, and Teemo's stacking magic poison.

Champions (3)

  • Diviner's Judgment ability
    Diviner's Judgment
    Stab the target, causing them to bleed for 460 / 690 / 1135 Attack DamageAbility Power physical damage over 18 seconds. After the attack, leap to the highest percent Health enemy within 3 hexes.
  • Double Time ability
    Double Time
    Passive: Attacks deal 30 / 45 / 100 Ability Power bonus magic damage and an additional 70 / 105 / 190 Ability Power stacking magic damage over 6 seconds. While an enemy has 5 or more stacks, Teemo is in The Groove.
    
    Active: Gain 150% Attack Speed for 3 attacks.
  • Star Strike ability
    Star Strike
    Reposition next to the target to strike the most enemies. Then throw 5 piercing kunai, each dealing 43 / 65 / 97 Attack Damage physical damage to the first enemy hit, reduced to Attack Damage  for each subsequent target. Kunai remove 1 Armor, 2 if they crit.
    
    N.O.V.A. Strike: Slice all enemies, applying Wound and a bleed that deals Attack Damage  physical damage each second. Kunai increase the damage of the bleed by 12%.

Traits (1)

  • Description
    Stargazers chart a different constellation every game. This game: The Serpent.
    
    Allies in empowered hexes gain 5% Durability. Stargazers in empowered hexes gain more and poison enemies, repeating a portion of damage dealt as magic damage over 3 seconds.
    
    More hexes reveal at each player level