#4. One of The Fiend's previous victims interferes
The Fiend has brutalized many Superstars ever since he made his debut on WWE television. The list of his victims ranges from current Superstars like Finn Balor and Braun Strowman to legends like Kane and Mick Foley. So, what if one of these Superstars decided to get revenge and help Seth Rollins best The Fiend at HIAC.
Kane's name will forever be associated with the Hell in a Cell as the Big Red Monster had made his debut as an interference in the first-ever HIAC match helping Shawn Michaels defeat The Undertaker. It would have been another iconic moment if Kane made his return and created enough distraction for The Fiend to ensure Rollins picks up the victory.
Another option could have been using Braun Strowman as the man to seek revenge on The Fiend as not only would it help Rollins get a tainted victory while maintaining the credibility of The Fiend, it would also build towards a program between the two former members of the Wyatt Family.