Ash the master of illusions

Ash is a zorua born in the wild that has powers to make his illusions solid and life like. He could transform himself to any Pokemon regardless of gender. In shadows he is able to disappear and watch his surrounding from ten kilometers. He found a kid dying and took his place in the human world observing them in the human world. He learn to talk human easily then decided to become a Pokemon trainer because why the hell not. Luckily his name stay the same due to altering memories but kept the last name Ketchum.