When a creep is damaged by this tower it will become infected with a plague. This plague deals 750 damage per second and lasts 5 seconds. Every 1.5 seconds the plague can spread to a creep in 250 range around the infected creep. If an infected creep is infected again by the plague the duration will refresh and the damage is increased by 375.
Every 3 seconds, if there is a corpse within 1150 range this tower will extract its soul, increasing its attack speed and damage by 5% and Plague's rate of spread by 10%. This buff lasts 20 seconds and stacks, but new stacks will not refresh the duration of old ones.