In Avatar As The Earth Monarch

In his last life Elijah was an ambitious man, he exceeded in some of the most dangerous martial arts Muay Thai, Taekwondo and Krav Marga, joined the Royal Marines as a officer at 23 along with opening his own Dojo at 27. But like most things... he came to an end. He was murdered by dirty cops but unlike the adult years of his life he died helpless, scared and alone. Yet fortunate for him he had a second chance. What do you think an ambitious person would do with the potential to lift mountains, tear monumental ravines or collapse cities? A/N: He will be reincarnated into Avatar the last air bender with minor knowledge. He will also be the son of King Bumi I don't own any characters or character designs apart from my oc's