#1. The Demon vs. the Beast
Finn Balor is a small wrestler who smiles way too much and loses many matches. Brock Lesnar, on the other hand, is a sadistic heel who loves to torment his opponents and barely loses. Apparently, Balor needs to step up his game to have any chances at slaying the beast and becoming the new Universal Champion.
However, Demon Balor, the alter-ego of Finn Balor, is the polar opposite of Balor. WWE protects the Demon incredibly. The Demon has just lost one match in WWE and that was in NXT, to Samoa Joe.
In the main roster, the Demon is yet to be defeated and boasts of convincing wins against the likes of AJ Styles, Seth Rollins, Bray Wyatt, and Baron Corbin. If Balor were to unleash his demons, we would have a credible threat to Brock Lesnar's reign as the Universal Champion.