Mass Dispel

Mass Dispel
	Mass Dispel; Row 5 priest talent; 30 yd range; 20% of base mana; 2 min cooldown; 1.5 sec cast; Dispels magic in a 15 yard radius, removing all harmful Magic from 5 friendly targets and 1 beneficial Magic effects from 5 enemy targets. Potent enough to remove Magic that is normally undispellable.;
Properties
Class	Priest
School	Holy
Cooldown	2 minutes
Talents
Talent required	[Spell Warding]/ [Blessed Recovery] or [Rhapsody] or [Leap of Faith]
Improvements	[Improved Mass Dispel], [Mental Agility]

The bonds of magic shatter like broken glass in the grasp of an experienced priest.^[1]

Mass Dispel is a priest class talent that dispels magic within a 15 yard radius of the targeted area, dispelling all harmful debuffs from friendly targets and 1 beneficial buff from enemy targets, affecting up to 5 friendly and 5 enemy targets.

Notes

Mass Dispel from the TCG.

As of the patch 9.1.0 hotfix on 2021-7-20, when Mass Dispel dispels multiple targets, the order of dispels is now random. Prior to this hotfix, the spell targets those closest to the center of the green targeting circle first and then moves outward.
Mass Dispel is able to remove normally undispellable Magic effects such as [Ice Block] and [Divine Shield].
For shadow priests, the mana cost of mass dispel is increased to 11.36% of base mana. This does not factor in the 80% reduction to shadow's mana pool size, causing mass dispel to cost more than half of the caster's maximum mana.

Trivia

The graphic for Mass Dispel in Patch 2.2.0

Mass Dispel is a rare Priest spell in Hearthstone. The flavor text reads: "It dispels buffs, powers, hopes, and dreams."

Patch changes

Hotfix (2023-11-28): Resolved an issue preventing the cooldown of Mass Dispel from resetting when an encounter ends.
Patch 10.2.0 (2023-11-07): Cooldown is now 2 minutes (was 45 seconds).
Patch 10.1.5 (2023-07-11): Now costs 20% of base mana (was 11%).
Patch 10.0.0 (2022-10-25): Now a row 5 class talent (was a level 42 ability). Rank 2 effects are now baseline.
Hotfix (2021-07-20): When Mass Dispel dispels multiple targets, the order of dispels is now random.
Patch 9.0.5 (2021-03-09): No longer cancels [Greater Fade].
Patch 9.0.1 (2020-10-13): Now available at level 42 (was 80). Dispelling undispellable effects now requires Rank 2 at level 50.
Patch 8.0.1 (2018-07-17): Cooldown increased to 45 seconds (up from 15 seconds).
Patch 7.1.0 (2016-10-25): Now learned at level 80 (was 72).
Patch 7.0.3 (2016-07-19): Can now remove Magic that is normally undispellable. Now has a limit of 5 friendly and 5 enemy targets, down from 10.
Hotfix (2014-12-04): Should no longer be incorrectly dispelling [Cyclone] without a [Glyph of Mass Dispel] equipped.
Hotfix (2014-12-03): Mass Dispel modified by Glyph of Mass Dispel should no longer incorrectly dispel Cyclones cast by a friendly player.
Patch 5.3.0 (2013-05-21): No longer dispels magic effects that are normally undispellable. Cast time has been decreased to 0.5 seconds, down from 1.5 seconds for Discipline and Holy Priests.
Patch 5.0.4 (2012-08-28): Now removes all harmful effects from friendly targets. Now has a 15 sec cooldown. Now learned at level 72 (was 70).
Hotfix (2012-02-02): Should once again dispel up to 10 friendly or enemy targets.
Patch 4.3.2 (2012-01-31): Mass Dispel should again prefer dispelling targets that have magic effects that can be dispelled.
Patch 3.3.0 (2009-12-08): Some trinkets which were not triggered properly by this spell will now work correctly when Mass Dispel is cast.
Patch 3.2.0 (2009-08-04): This spell now triggers some types of trinkets it did not trigger before (such as [Flow of Knowledge]).
Patch 2.4.0 (2008-03-25): Increased the number of affected targets from 5 to 10.
Patch 2.2.0 (2007-09-25): Has a chance to be resisted when dispelling immunity effects. This will be displayed in the combat log. In addition, it will no longer cause rogues and druids in [Cat Form] to lose [Stealth]. The flashing area graphic has been removed.
Patch 2.1.0 (2007-05-22): Mana cost reduced.
Patch 2.0.10 (2007-03-06): Changed to always pick immunity-granting effects as its target. Note that even if [Ice Block], [Divine Shield], or [Banish] are dispelled by Mass Dispel, you'll still get an "Immune" message even though it has been removed.
Patch 2.0.3 (2007-01-09): Will no longer cause stealthed Rogues and prowling Druids to lose stealth.
Patch 2.0.1 (2006-12-05): Added.