Chou is known to be the source and master of all legendary pokémon and to be the hero of all regions. She was once an orphan that an acterss always picked on. Mewtwo gave her a gem called the death maker that made her detroy the acterss and it ate up her soul. Mewtwo and Mew ask Chou to be their master, so she agreed and she was given several forms for every pokémon type. She also is able to do every single move a pokémon can fight with. Long thought to be dead, It was unknown that Chou is immortal like all pokémon