Lorewise, excess anything empowers Slaanesh. Which would include excess disease, so long as they exult in it. There's a reason Slaanesh is one of the strongest Chaos entities, despite being a relatively young demon: Everything is praise, even praise for the competition.
Lorewise, excess anything empowers Slaanesh. Which would include excess disease, so long as they exult in it. There's a reason Slaanesh is one of the strongest Chaos entities, despite being a relatively young demon: Everything is praise, even praise for the competition.