Magic immunity



Magic immunity is a buff that prevents a unit from being affected in any way whatsoever by most hero abilities. It is is largely used to completely mitigate incoming magical and pure damage (the damage types dealt by nearly all hero spells), and prevent harmful spell effects, although it also prevents and dispels most positive buffs as well.

It is an aspect of some hero abilities as well as the ever-popular. Many ultimates and certain specific abilities (including all abilities that deal physical damage) have the bonus of penetrating magic immunity.

Effects of magic immunity
A unit under the magic immunity buff will take no damage that is considered magical damage or pure damage. This includes any magical damage caused by an enemy Hero's ultimate ability. Note that this is not the same as having 100% magic resistance: certain damage types that are reduced by magic resistance will still affect the hero, composite damage in particular. Exceptions:, , and will damage units which are magic immune despite dealing magical damage, as they deal a special type of magical damage called universal damage.

A magic immune unit cannot be targeted by most abilities. They can still be affected by area-of-effect non-targeted abilities that heal, deal physical damage, cause HP removal, or deal composite, such as Dazzle's or Beastmaster's. However, they cannot be directly targeted, even if the ability does physical damage. Dazzle's physically-damaging, for example, cannot target or affect magic immune units.

Regular right-click attacks are unaffected by magic immunity, as are most attack modifiers such as critical strike. The stun from some Bash abilities will penetrate magic immunity. The chain lightning effect from or  will work, but will not damage any Heroes that are magic immune. Similarly, the mana burning effect from Diffusal Blade or will also not work, nor will  from Broodmother.

Magic immunity can be used to dodge incoming projectile-based abilities such as, effectively wasting their usage.

Gaining magic immunity
Heroes can gain temporary magic immunity from several sources. In addition, certain higher level neutral creeps are permanently magic immune. Roshan is not magic immune, but will block some abilities in a manner similar to.

Creeps with magic immunity








Ultimate Disables That Will Not Go Through Magic Immunity
In general, the disabling components of most ultimates will penetrate magic immunity, even if the damage doesn't. Exceptions to this rule can be seen below.

Note that magical damage will not damage through magic immunity. This means that damage-dealing ultimates with no disabling component, such as, will have no effect on magic immune units.

* The tether will still be applied and may still be triggered after the magic immunity ceases