Spell priest voidform.png
  • Voidform
  • Level 23 Shadow priest ability
  • Passive
  • Activated by casting Void Eruption. Twists your Shadowform with the powers of the Void, increasing spell damage you deal by 20%, granting an additional charge of Mind Blast, and refreshing Mind Blast's cooldown.

    Lasts 15 seconds.
Usable by
Class Priest
Other information
Level learned 23
Improvements [Legacy of the Void]
Related buff
Spell priest voidform.png
  • Voidform
  • Cooldown on Mind Blast reduced by 1.5 sec.
    Spell damage dealt increased by 20%.
    Haste increased by 0.5%.
    Losing 6 Insanity every sec.

Voidform is a level 23 passive Shadow priest ability. It's activated by casting [Void Eruption].


  • While Voidform is active, the priest is forced to speak Shath'Yar — the language of the Old Gods.[1]

Patch changes

  • Shadowlands Patch 9.0.1 (2020-10-13): Now has a fixed duration and no longer drains Insanity, no longer grants additional Haste or reduces cooldown of Mind Blast, instead gives Mind Blast additional charge.
  • Battle for Azeroth Patch 8.1.0 (2018-12-11): Now increases all spell damage by 20% (was 10%).
  • Battle for Azeroth Patch 8.0.1 (2018-07-17): Now increases all spell damage by 10% (was 20% shadow damage). Cooldown on Mind Blast is now reduced by 1.5 seconds, down from 3.
  • Legion Patch 7.1.5 (2017-01-10): Now increases Shadow damage by 20% (was 30%). No longer grants Lingering Insanity (now a separate talent).
  • Legion Hotfix (2016-11-14): Voidform's Insanity drain now begins at 8 Insanity per second (down from 9), but will increase at a 10% faster rate
Developers' Notes: We want to reduce the maximum amount of time that [Surrender to Madness] can be maintained, without significantly impacting Shadow otherwise. Our intent in this hotfix is that it's still effective to use Surrender similarly to how it is currently used, but that its maximum potential in ideal situations is slightly less extreme.
  • Legion Hotfix (2016-09-26): Voidform stacks no longer increase while Dispersion is active.
Developers' Notes: We would prefer that [Surrender to Madness] not be as dominant as it is, and that it can't be extended for quite so long. However, addressing this further would require significant changes to the spec beyond what we want to do in a tuning pass at this time. We will look for an opportunity to take a more comprehensive look at this issue in a future patch.


External links