Cultivation of Immortality Relies on Multiple Personalities

What is a genius? You practice alone. There are still 9 people in my body who help me practice. You have an epiphany alone, and I have an epiphany every now and then. What are the most things you are good at as a genius? Is it formations, weapon refining, elixirs, swordsmanship, immortal magic, or beast control? How much can you realize from a battle! I learned from ten people in a battle, and I integrated them and took the essence and discarded the dross. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.