Showdown! I can switch forms while fighting

Introduction: (Imagination+Fantasy+Beauty+Super Cool+Transformation) A generation of Nether Lord was betrayed by a beauty and stabbed in the back by his brothers. Fortunately, the remaining soul fell into the mortal world and merged into a dead baby. He started out as a young idiot prince-in-law, and gradually awakened his memory. After living another life, he not only held magical skills and possessed a divine body, but also could switch forms during battle. In the end, not only did the beauty who betrayed him kneel down In front of him, he made his brother stab him in the back and paid a heavy price!