#4 To establish the fact that Bray did not create Braun Strowman
The feud between Bray Wyatt and Braun Strowman is hugely based on their history together as part of the Wyatt Family. It was Bray who introduced the WWE Universe to this monster in 2015, who was the latest addition to the Wyatt Family back then. The two continued to be together until the 2016 Draft which saw the Monster Among Men being separated from the faction and pushed ahead as a singles Superstar.
In the last few weeks, Bray has continuously mentioned that he was the one to create Braun Strowman, and now he will be the one to destroy him. The mid-match tease with Braun Strowman taking out the Black Sheep mask and putting it on was brilliant!
The Monster Among Men teased giving in to Bray and rejoining him before taking off the mask and crushing it to symbolize the fact that he is no longer the Black Sheep of Bray Wyatt's family.
This rivalry with Bray Wyatt has massively helped Braun Strowman to add more depth to his character, something which will help him in the longer run.