From WoWWiki
This is one of the four
Warlock's pet
Voidwalker's spells, purchasable via grimoires at the various Demon
trainers throughout
Azeroth.
Torment creates an unknown amount of threat on the Voidwalker's target so that it is more likely to attack the Voidwalker instead of the Warlock or his/her companions. This is Shadow-based, so Curse of the Elements will help your Voidwalker land Torment more often. It can be resisted, and does not guarantee that your Voidwalker will get aggro in a snap. It has a 5-second cooldown.
When set on auto-cast, the game's AI merely uses this on the Voidwalker's current target whenever possible. Because of Torment's cooldown, that means once every 5 seconds, which tends to eat up the Voidwalker's relatively small mana supply fairly quickly. It also recovers quickly when combat is over, but be advised.
| Rank | Level | Mana | Description | Cost | Base Threat
|
| 1 | 10 | 15 | Generates threat from targeted mob. | n/a | 45
|
| 2 | 20 | 30 | Generates threat from targeted mob. | 20 | 75
|
| 3 | 30 | 50 | Generates threat from targeted mob. | 60 | 125
|
| 4 | 40 | 70 | Generates threat from targeted mob. | 1 10 | 215
|
| 5 | 50 | 90 | Generates threat from targeted mob. | 1 50 | 300
|
| 6 | 60 | 110 | Generates threat from targeted mob. | 2 60 | 395
|
| 7 | 70 | 130 | Generates threat from targeted mob. | 6 70 | 632
|