Avatar: Reito Guardian of Pandora

A space pod that came out of a dimensional portal made its way towards the planet of Pandora where it crashed landed in a tropical water source near some islands. A water clan discovered the crash site where they found a unknown child of a different species in which they took it upon themselves to raise the child as their own and for many years the child grew into a powerful warrior and part of clan that see him as a god of their world. The child made friends and had a family but later during the years when he got older the clan told him of what he was and how he got to their world in which the child found out about his origins and who he family was and due time he uses his abilities to help people of Pandora and fight those who bring a threat to it.