Corruption is a really underused game mechanic, but is conceptually a really interesting mechanic. If it was to be used. A health ceiling that reduces your health to 50%, causing you to become weak. And when it is used, its such a tiny amount that it pretty much doesn’t exist at all. Right now the issue is, not much things give corruption, but a lot of things remove it.
My suggestion is to increase the ways, or amount of corruption gained.
-Change corruption more to an insanity/exposure to dark sorcery, so if your near undead, Eldritch Horrors, Demons, etc, you passively gain corruption just for looking at them. Getting hit by them gives a much higher corruption yield as they leave their taint on you.
-Dancers rate of removing corruption would be reduced to 1/10th of what it is now. This to increase the usefulness of Dancers, and to make it so you can’t completely negate these changes by bringing a dancer.
-Survival Stat reduces the rate of corruption gained.
-Human Thralls are affected by Corruption. Survival stat reduces the rate of corruption.