Ok so I thought about this for the Corrupt Overworld's look. Following the idea of GreenWolf's Liquid Essence, I would like to have corrup liquid essence to be in the Corrupt Overworld. For you to be able to use the corrupt liquid essence you would have to find an item that would transform it. You would eventually find it in some ruins that would be habitated by a mob (W.I.P). The world has tons of holes from which mobs can come from. This is not the full world, it's still up to expand. Opinions about this?