#4 Freestyle rap battle
Unlike the previous entry, WWE has indeed witnessed various rap battles. The most recent one took place between the New Day and the Usos on the July 4th, 2017 episode of SmackDown. It did set the tone for their match at Battleground after the Usos' walkout at Money in the Bank.
However, in none of the rap battles, has a championship been defended. Shinsuke Nakamura and AJ Styles could have cut the ribbon.
The rules of the rap battle are simple. It would consist of three rounds with the audience being the referee. Each competitor would get two minutes to rap it out, and the WWE officials would create a bifurcation so that they don't resort to violence.
After each round, the audience will vote the winner via their voting machines. The first man to win two rounds will become the WWE Champion.
It is impossible to not have a clear winner if voting machines come into play. Moreover, WWE requires a bathroom break match before the main-event between Jinder Mahal and Roman Reigns. This match would suit it perfectly.