There are plenty of procs to spawn more dogs, but the cooldown for zombie dogs and mass confusion may not make this build workable for high levels.
I am using leeching beasts rune for the dogs to increase dog survival.
Grasp of the dead is for CC and to bunch up critters to blow up more at a time.
I think it can be tweaked in the primary skill. Maybe Firebats or Acid Cloud. I chose firebomb w/ghost bomb for spamming AoE damage.
Using soul harvest to boost sacrifice damage would help. But I see many drawbacks for this build.