Increases the effectiveness of your Voidwalker's Torment, Consume Shadows, Sacrifice and Suffering spells by X%, and increases the attack power bonus on your Felguard's Demonic Frenzy effect by Y%.
Demonic Brutality increases the overall effectiveness of your Voidwalker and the effectiveness of [Demonic Frenzy].
Ranks
Rank
Voidwalker
Demonic Frenzy
1
10%
1%
2
20%
2%
3
30%
3%
Notes
As with any spell, your Voidwalker's [Torment] has ranks. You receive these ranks at levels 20, 30, 40, 50, and 60. Just before those levels (*8 or *9), especially as a Warlock becomes more powerful, your Voidwalker will have quite a bit of trouble keeping aggro. This talent makes a huge difference, and many Warlocks consider this talent essential for effective Voidwalker soloing.
Just to note: The improvement of Demonic Frenzy increases each stack by 1/2/3%, making 6/7/8% per application (up to an overall of 60/70/80%), so it's a very noticeable improvement to your Felguard.