Debuff

A debuff is the contrary of a buff. It is an effect that while it persists hampers the target in some way. Among other effects, debuffs frequently lower attributes, hinder the effectiveness of the target's actions, or cause damage over time.

Similarly with buff, certain debuff are stackable: repeated application on the same target will causes a stacking effect of increased effectiveness. Non-stackable debuff  will only be refreshed by repeated application. All debuffs are temporary, and will not persist after the affected target's death.

There are currently 3 sources of debuffs: Champion abilities, Summoner spells, and item active effects.

Champion Abilities:
Many champion possesses a certain type of '''debuff. '''Such debuff can be armor reduction from, magic resist reduction from , attack damage reduction from , or even maximum health reduction from.

Summoner Spells:
Summoner spells have greater effect as a debuff as compared to champion abilities.
 * reduces the damage dealt from the affected champion and slow it greatly.
 * deals true damage over 5 seconds, and reducing all healing and regeneration effects on the affected target for the duration.

Item Effects:
Certain items possesses an active component that can be utilized, and some which will debuff the enemies in the form of aura.


 * reduces all nearby enemy champions' magic resist by 20.
 * active effect will deal magic damage and slow it's target's movement speed by 50%.
 * inflict 4 damage per second on-hit for 8 seconds.. Upon activation, auto-attacks will additionally apply Grievous Wound which reduces healing and regeneration effects by 50% for 8 seconds.
 * passively slows all nearby enemies' attack speed by 20%.
 * passively allows auto-attacks to slow your target's Movement Speed by 40% for 2.5 seconds. (30% for ranged attacks)
 * active effect will deal magic damage and slow it's target's movement speed by 50%.
 * inflict 20 magic damage on-hit and reduces the target's magic resistance by 6 for 8 seconds. Stacks up to 4 times.
 * gives auto-attacks 25% chance to slow the target's Movement Speed by 30% for 2.5 seconds.
 * grants the wielder 20% chance on being hit by an auto attack to slow the attacker's movement and attack speed by 35% for 3 seconds. Upon activation of it's active component, it will slows movement speed and attack speed of surrounding units by 35% for 2 seconds + 0.5 seconds for every 100 armor and magic resistance.
 * causes your spell damage to additionally slows the target by 15% or 35% for 1.5 seconds.
 * allow auto-attacks to reduce your target's armor by 15 for 5 seconds. Stacks up to 3 times.
 * allows auto-attacks to have a 25% chance to slow your target's movement speed by 35% for 2.5 seconds.
 * causes user to have 20% chance on being hit by an auto-attack to reduce attacker's movement speed and attack speed by 35% for 3 seconds.