Kaom's Helmet lets us detonate corpses for 10% of life as phys dmg when we warcry.
Automate warcry with 2 min endu + Eternal Apple + Enduring Composure + FR in a trigger weapon. This allows full buff scaling from warcries.
General's Cry + Autoexert for more consistency.
Vinespike Cordial + Eater boots enable all dmg can poison, so we use hatred, HoAsh, and Infernal cry to stack almost 100% phys as extra elemental.
Explodes from Infernal cry + Asenath gloves create chaining poison pops.
PoB: https://pobb.in/jMJjvhmbXIAi (i have no idea how to calculate dps, i'm assuming 12x the on kill dmg from a lvl 70 corpse at minimum)