Dragon's Defilement

(5 items) Dealing damage over time applies a stack of Blight Seed to the target for 5 seconds. At 20 stacks, Blight Seed explodes, dealing 667 Disease damage to the target and nearby enemies, increasing by 150% per additional monster hit, up to 600%. The damage scales off your Weapon or Spell Damage and can occur once every 1 second. Enemies can only have one Blight Seed at a time and require 20 more stacks per group member wearing this set.

(5 items) Your Light Attacks apply the Touch of Z'en on enemies for 20 seconds. Enemies with the Touch of Z'en take an additional 1% more damage for each damage over time effect you've placed on them, up to 5%. Enemies can only be affected by one Touch of Z'en at a time.

(2 items) When you deal damage with a melee Heavy Attack, you spew a cone of corruption, dealing 1492 Disease damage to enemies over 4 seconds. This damage is increased by 10% for each negative effect the enemies have, up to a maximum of 300%. This effect can occur once every 10 seconds and scales off the higher of your Weapon or Spell Damage.