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A dispel is the term used for a forced removal of status effects. Dispels usually come together with other mechanics and are rarely seen as a primary mechanic of a spell or item.

Mechanics


Dispels remove status effects based on wether the casting unit is an ally or an enemy, and wether the status effect is positive or negative. Applying a dispel on an allied unit only removes negative effets (also known as debuffs). Positive effects (known as buffs) are never removed. Vice versa, applying a dispel on an enemy unit only removes buffs off of it, debuffs are not removed.

There are 4 different variations of Dispel: A basic dispel, spell immunity, strong dispel and death.

Basic dispels are able to remove most basic stats altering effects like speed or damage bonuses or slows and silences. However, they are unable to remove most hard disables like stuns or Forced Movement.

Spell immunity may also apply dispel, although not all of them do. Their dispel can remove everything a basic dispel can and can also remove a few additional effects a basic dispel cannot remove, like disarms.

Strong dispels are capable of removing everything a basic dispel and spell immunity can remove. Ontop of that, these can also remove many more status effects, including hard disables. Wether or not strong dispels can remove positive effects is unknown, since there is no source of strong dispel which can be applied on enemy units.

Death applies the ultimate dispel on units. It removes almost absolutely everything. Only a very few effects are not dispelled by death.

Death
When a unit dies, most buffs and debuffs on it are removed. However, in case of heroes, when the death timer is 0, no dispel is applied.

Removable effects
Every buff and debuff which is not listed in the next section is removable.