I wonder if adding offensive player stats to those devotions, items and augments would be a good idea, to better facilitate hybrid playstyle. Pure pet builds won’t benefit from those, so shouldn’t change things on that front.
Also, pet build using crap Ishtak devotion that can kill everything in the game (while using 0 MIs or ascendant bonuses) coming through - Nurgle Bath Bombs - Ghol's Pet Cabalist 
In case anyone is wondering, I also have a version of that build using Mogdrogen instead of Ishtak, but it performs worse 
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