#4 Kane could have finally gained the ultimate revenge on The Undertaker by ending his Streak
The story between The Undertaker and Kane in WWE is the stuff of legend, beginning in mid-1997. It was revealed that The Deadman had burned down his family's funeral home, seemingly killing everyone inside. However, it was revealed by Paul Bearer that Kane was alive and had survived the fire.
As a result, the Big Red Machine wore a mask to cover his scars, which was more mental than physical. There was a lot of meat on this bone, with the two "brothers" feuding and teaming throughout their two-decade-long association with each other.
Undertaker won two WrestleMania matches against Kane, with the first one coming five months after their feud began in WWE at WrestleMania 14. But what if the third time was the charm? The two could have faced off one final time at The Show of Shows, possibly in a double retirement match.
Things would have come full circle had it been Kane, who was the one to finally defeat The Undertaker at WrestleMania and break his Streak. It would have been the ultimate revenge for Kane, following the trauma he had been through at the hands of his "big brother".