Each summon spell originally has a casting time of 6 seconds, so this makes it instant.
This casts a buff on the warlock, which can't be dispelled.
This talent is particularly useful when combined with which reduces all of your summons' cast time by 2/4 seconds and 20%/40% mana cost. This gives a maximum benefit of a 0.5-second cast.
Tips and tactics
One of the best uses of this is when your Voidwalker is near death; use its Sacrifice ability to give yourself up to 30 seconds of protection. Then cast Fel Domination and summon a Succubus, Felhunter or Imp (so long as you have at least 1 point in ) to help finish off the (hopefully weakened) enemy.
Enemies of the warlocks would have lay people think that the demons a warlock summon are invincible and cannot be defeated. This is, in reality, nothing more than anti-warlock propaganda. As all warlocks know, summoned demons (other than the Infernal and Doomguard...well...maybe not the Doomguard) are more cuddly and fluffy than threatening and a Warlock can often find him/herself in the open without a demon to protect himself.
Some warlocks call this the 'Oh Crap' maneuver...
- Patch 9.0.1 (2020-10-13): Re-added. New icon.
- Patch 4.0.1 (2010-10-12): Removed.
- Patch 3.2.0 (2009-08-04): Cooldown reduced to 3 minutes, down from 15 minutes.