The return of the Sorcerer and the birth of a new magic
Legalization of magic in the distant future
The Sorcer himself had not yet legalized magic within the state, but his arrival made this future change possible. He brought knowledge that could no longer be completely suppressed or forgotten. It was thanks to this event that centuries later William I was able to allow magic in the capital.
The first Sorcerer King as a distant consequence
Without the Sorcerer's return, there would be no schools of magic, and there would be no possibility of the monarch himself becoming a practicing magic user. His trail thus leads to the very transformation of the royal identity. This is one of the greatest historical effects of this event.