The idea of this build is to inflict as much poison as possible in a short period of time.
This builds works best with Smelly Wall because you can inflict much more poison if you gain a lot of block.
With 2 Death Scythes you can get +200% poison. That means that you'll inflict 3 Poison every 18 Block.
Strong Pestilence Flasks are really important to apply poison. Put Stone Skin Potion beneath the flasks to trigger more poison at combat start.
Stone Armor gives you the most Block and you don't need stamina in the Double Death Scythe variant. Use other armors if you use the Darksaber variant.
Strong Demonic Flasks can do a lot of damage.
These flasks can crit aswell. That's why Cursed Dagger need to point on them.
Use Health Potions to trigger more damage at the end of the fight.
With this combination you can burst your opponents fast.