The devourer

A huge fleshy creature that has multiple transformations that started as a trollge that was 1 atom thick so he decided to eat and everything he ate was too tasty so he started to eat other people and evolved and became a deadly, high-visioned, massive, and red fresh meat creature. He also has three legs. he has more transformations but this is his main transformation and it is 2.5 kilometers tall. (Around 1.5 miles tall) he just got so addicted to his own kind, that he did not even mean it even at the very first bite. By the way you can be who you want and you can even continue the story if you know it.