One Piece: the Strongest Imitation Fruit

My god-level imitation fruit can imitate your fruit, and can also imitate his domineering power, learning from each other's strong points, until I become the strongest and subvert this decadent world! … Travel through the world of pirates and start surviving in the wilderness! Become a person with the ability to imitate fruits, Why do others become invincible when they travel through time, but I become a monster when I travel through time? I'm not convinced! I want to change my destiny and subvert this world...