Protolge
In the Relm outiside of time two brothers ponies fight one younger and one older. One trying to control all of time the other tring to save it. At the end the younger brother was victorious and banised the elder one to the the space between time. The younger is known as Time Page the Alicorn Master of Time, the other Eon the Banished. Both are the last of the Chrotians a race of immortal ponies who live outside of time and are charged with protecting it. Many eons have pass since them and the Time master colt discovers an anomly in Equestria and goes to fix it. Little does he know a blast from the past is waiting for him.