As the archmage stood over the slain Fiend, he realised he was too late. Its chosen tributes were already sacrificed. A blueish green light grew from within the corpse of the fiend, then it stood. tendrils grew from its mouth and it's head burst open to reveal a swollen glowing brain. It's body contorted with flesh and bone kneading itself into a new form. The horror stood 80 ft tall and let out a shriek which felt as if it emanated from every corner of the universe.
A personal piece for my personal project- Magitopia