Erased (Male Aizawa Reader x One Piece)

I don't own mha or one piece. What is the strongest and most useful Devil Fruit? Some might say it is the Yami Yami No Mi, while others might say it is the Soru Soru No Mi, in reality, it is the Shokyo Shokyo No Mi, the Devil Fruit that lets the user erase the Devil Fruit of another person by looking at them. Too bad...