#1.) Winning the Universal Championship at SummerSlam 2016
It must be difficult for Balor, having had the best and possibly even worst night of his career at SummerSlam 2016. In his debut PPV, he beat Seth Rollins to become the inaugural Universal Championship. It was undoubtedly an incredible, career-defining moment for Balor but that was taken away from him immediately, as he suffered a dislocated shoulder during the match after a badly timed buckle bomb to the barricade.
His reign wound up lasting all but 22 hours as he vacated the title the next day. He would return on the RAW after WrestleMania.
