[Warlock] Difference between rupture & awakened rupture?

[834272_1452550059]

Hello,

 

Warlocks have a skill that's named Rupture. It can be activated when you critically strike a bombardment (RMB default).

Now here's the catch... if you check the skillbook there's also an awakened rupture which says it can be activated by doing the exact same thing. But when doing so only the basic Rupture pops up, I never got the awakened one. 

Is this a skill that you can only do at higher levels later on or am I doing something wrong?

 

Thanks!

[fatalystic]

Awakened Rupture replaces regular Rupture during Soulburn. It says so on the tooltip ._.

 

Soulburn is a party buff, stage 2 of Obliterate. All classes have at least one Awakened skill that is available only during Soulburn.