How to beat Shadow Mitsuo

If you wanna beat it you can do one of 2 things
1. Get Yatagarasu through fusing a bunch of stuff (iirc you'll need a Tao Tie and Black Frost)
2. Put the game on "Very Easy" for that one fight. Don't worry if it's "cheating", I guarantee you no one really gives a ♥♥♥♥ if you do this