Best CR for warlock PvE?

[Thegoon]

Been testing some of the CR that is on Buddy store for Warlocks but cant deside what CR is the best.
Im not gonna PvP at all, I only care about PvE and easy setup.
So what do u guys think is the one I should buy?

Regards
The Goon

 

[pheelgood]

There is more than two? (Singular & Millz)

 

[theDizzle]

millz for pve

 

[contagion]

Been testing some of the CR that is on Buddy store for Warlocks

There is ONLY one on the buddy store for PvE. Millz's Demonic.

Would this warlock of yours happen to be a 'troll'?