Curses, demonic possession, unholy impregnation – all the horrible highlights.
Most faith groups get their own version of a dark, underworld religion, from Kali worship to serving Hel and the Jotuns, and the more you spread their influence, the more power you get. Though more rooted in history than the Sunset Invasion expansion, which allows the Aztecs to invade Europe, there are still plenty of weird novelties, especially if you go down the seductive path of worshipping devils. These sects offer new ways to interact with the religious side of medieval society and for the adventurous can offer strange powers, forbidden knowledge, and the ability to champion heretical religions. You can join a variety of societies, including monastic orders, secret organisations and devilish cults. Ostensibly, Monks and Mystics is all about opening up new roleplaying possibilities in regards to faith.
Crusader Kings 2 has always had a bit of a dark side, but with the new Monks and Mystics DLC, it’s been cranked up to 666.
Last night I ate my cousin because the Devil told me to do it. I’ve been hanging around with a bad crowd, staying up all night, attending weird orgies and torturing rivals until they embrace the teachings of Lucifer.