Yo this is really cool man! Im not big on pet builds but i LOOOVE unconventional builds, especially when they are functional.
Still new to grim tools and all that, otherwise id post some of my own weird builds. The first and only level 100 character i have was one, a pure Shaman going full-tilt HP Regen, using totems, vines, Apothecary’s Touch and Healing Rain to operate as a healer. In ultimate I took soldier strictly for Military Conditioning and Menhir’s Will.
I had read so much about how HP Regen was useless, but to be honest I cant stress enough just how much fun i had playing this character- She just would not die. Her HP Regen at default is 2k+ Per sec, and when abilities pop off it goes up to 5k per sec WITHOUT Menhirs Will procing. Shes got 20k HP, so its very tough to put her down with all the healing shes got going on. Put her alongside a Defiler support and the team is like damn near invincible.