Debuff Immunity



Debuff immunity is a modifier which stops most effects of debuffs' effects on a unit without dispelling the debuffs and without preventing debuffs from being placed on the unit. It also grants resistance against magical damage and immunity against pure and reflected damage, as well as protecting against mana loss.

Debuffs
Debuff immunity is a status effect. Most debuffs in the game first check whether or not the unit has the debuff immunity status. If the status is present, the debuff's effects cease temporarily, until the unit is no longer debuff immune. However, some debuffs (commonly those placed by ultimate abilities) pierce debuff immunity, meaning their effects carry on normally.

Usually, a debuff either fully pierces debuff immunity, or it is fully blocked. However, there are a few exceptions to this rule. Whether or not a debuff pierces debuff immunity is noted down in the description boxes of each ability, right below the ability name. A compiled list can be found in the interactions tab.

Note that debuff immunity protects the unit from negative effects of debuffs. If a debuff has positive effects, it may apply them still, like increasing movement speed. Furthermore, if a debuff has functional effects that only use the target as a source of origin, their effects continue (e.g. continues striking,  continues to deal damage around the unit). Debuffs that have triggers can still have their effects triggered, like, , and ), the triggered effect is then still subjected to debuff immunity. Debuffs that apply buffs or debuffs on other units can still do so (e.g. still grants attacking enemies attack speed).

The following status effects are prevented by debuff immunity:
 * Stun/Sleep
 * Silence/Mute/Break
 * Disarm/Blind
 * Cyclone, the unit stays on the ground
 * Hex, the unit's model does not change
 * Forced Movement, the movement gets immediately interrupted in most cases
 * Fear/Taunt
 * Root/Leash
 * Ethereal/Attack immunity
 * Slows
 * General stats reductions
 * movement Speed/Turn Rate
 * Attack Speed/Projectile Speed
 * Attack Damage/Spell Damage
 * Magic Resistance/Status Resistance/Armor
 * Attack Range/Cast Range
 * Attack Animation/Cast Animation
 * Strength/Agility/Intelligence
 * Health/Health Regen/Heal
 * Mana/Mana Regen/Mana Restore
 * Lifesteal/Spell Lifesteal
 * vision

Mana
Debuff immunity also prevents abilities from draining, burning, or otherwise removing the unit's mana pool, so that only ability costs can reduce their mana, unless the ability pierces debuff immunity.

True Sight and Vision
With the exception of, debuff immunity does not prevent abilities from revealing the unit with True Sight, shared vision, or from exposing, even if the applying ability does not pierce debuff immunity.

Dispel
Debuff immunity does not dispel any debuffs upon gaining it, although most abilities which provide debuff immunity independently apply a form of dispel as part of the ability.