Apocalypse Ritual.

I'm working on a minecraft mod that adds stuff from the Magnus Archives into the game. So I've been wondering if there was a way to have a kind of ritual that would start an apocalypse. The sky changing colors, tremors in the earth. The whole Eyepocalypse from the Magnus Archives. Changing the entire overworld, like i said. An apocalypse. Would there be a way to add something like that? Q>Q

Any help would mean the world to me! Thank you in advance! ^u^