This setup is built for high single target dps, specifically for use of War Machine. If you prefer more aoe damage than you can use the Dawnbreaker arrangement. The skill allocation focuses more on the Animal Companion abilities because we get more increased Damage Done this way in exchange of easily available Ultimate usage for War Machine. Heavy focus on poison damage may have you also considering other sets such as Morag Tong. This build also only consider you using Food and not recovery food along with the Imperial race, adjust accordingly otherwise to achieve 20k health in a trials setting.

Food:
Braised Rabbit with Spring Vegetables (Max Health+Max Stamina)
or
Dubious Camoran Throne (Max Health+Max Stamina+Stamina Recovery) [Adjust Attribute Points accordingly]
Equipment:
War Machine (Medium, Divine)
-Body
-Legs
-Necklace
-Ring
-Ring

Hunding's Rage (Medium, Divine)
-Waist
-Hands
-Feet
-Dagger (Precise, Weapon Damage)
-Axe (Infused, Poison Damage)

Spawn of Mephala (Medium/Heavy, Divine) [Or Velidreth, whichever]
-Head
-Shoulder

Rotation:
(Bull Netch > Green Lotus) LA > Rearming Trap > LA >Endless Hail > LA > Poison Injection > LA > Razor Caltrops > Weapon Swap
LA > SA (Subterranean Assault) > HA > Rending Slashes > LA > SA > HA > Rapid Strikes > LA > SA > Weapon Swap > Green Lotus

When Bull Netch Runs out, you can replace a light attack, I'll edit this later as I do more research. This rotation looks like a Waltz so if you find you need more sustain a recovery glyph or a Dubious might do the trick for you.