(I forgot their name shit but anyways) I have 2 theories 1. the Phoenix god used his powers to age the top faster and that is why he turns into a child but that's a little weird or 2. Something bad happens in the kingdom or to the top and the god has to sacrifice his life in order to protect him or the kingdom and since the top has special powers he brings him back but as a child and once the top ages up the god used his powers to age up to do it