[Barb] CotA:TaO is no longer viable.

John Yang - #47 - 20.07.2015 13:44
There was a bug with pet life regeneration where player pets were receiving significantly less life regen than intended. This will be fixed with the upcoming 2.3 PTR Patch 1 scheduled for this week.

Call of the Ancients is the most visible example because the Together as One rune redirects a lot of damage to them. In their case, they are intended to regenerate about ~5-6% of max life per second baseline, but previously were only regenerating about 1% per second.