The Egyptian god known as the lord of chaos and storms, often represented by a hippo, is Set (or Seth). He embodies chaos, storms, and disorder, often depicted as an antagonist to the Egyptian gods, particularly Osiris and Horus. Set's association with the hippo emphasizes his menacing and destructive qualities. Despite his negative attributes, he also plays a crucial role in the balance of nature and the cosmos, reflecting the duality of creation and destruction.