Cataclysmic

The Cataclysmic is a world evil biome making it a counterpart of the corruption, crimson, The Poison and the The Corrosion. It is a pre hard mode biome with the main colour being a strange, mysterious navy blue. It has a very reppeling look to the rest of the places, meaning it is the opposite of The Attraction which uses the colour pink to make it look like a good place (biome made by  one of my family members),  it has amalgamations, grizzly gargoyles and other nasty things.