Gunson

Gunson is Serena's brother.

Becoming Evil
After his parents banished him to the sun, the Unknown Pokemons rebuilt him. When Unknown Pokemon objected, he was banished. Serena, Emolga and Braixen arrive on the sun and Capture Gunson, Arresting him.

Becoming a Baby
Unknown Pokemon, Mewtwo 1, Mewtwo 2, and Mewtwo 3 play with magic resulting in him being turned into a mew, permanantly.