Rockbottom (Future Timeline)

Rockbottom (commonly known as "Rocky") is an echidna introduced in the Battle Of Universes side story Fight for Power. This Rockbottom is the same Rockbottom from said side story, but commonly 7 years older than Sonic, and 19 years younger than Mario. 
=== BIOGRAPHY ===
Future Rockbottom has the same past as the present Rocky. However, after age 16, their actions differ.
At some point, Rocky started gathering the Super Chaos Emeralds. He did this for about 2 years. When he finally gathered them all, he went to Omni Echidna and wished to become a Supreme Kai. While he never had a master, it's possible that Rocky invented his Kai attacks himself or either learned from another Supreme Kai. After becoming stronger, he took on an apprentice named Chillin, who became his best friend. One day, the duo was training when a "God", as Rocky put it, killed Chillin, and he also killed Mugman with a Hakai, cut Sonic in half, and beheaded Shadow. Somehow, Rocky was able to escape alive, and he went back in time to the present day Team Universe.