The final version is v1.3 but the penultimate fight is exceptionally difficult due to a moveset change. Hence, this guide is for v1.2. This version is still available online. Some things might be a bit unclear so please let me know if so!

https://docs.google.com/document/d/1ODLm1IwuUZY7g5V4z6VqiYHd_xFcmyzvrSUeCaLyf7w/edit?usp=sharing