I know my Shaman would be more useful if his wolf pet could actually stay alive with group heals.
Most delightfully ignorant quote ever.
Thanks for the laugh.
Most of the things past potime will sneeze at your pet and kill it, no matter how much group heals would stick on it or not. Even if you get CG pet, which can't even kill potime trash but is still a major upgrade to a blue pet, you'll be recasting it more than you like.
Things at HoH stage start AE'ing for 16.5k damage, which is an entirely different league altogether. Anyway, if you want to use pets, then pet affinity might be a nice start in some way, but it won't get you far.