#2 To counter Lio Rush

Lio Rush is the reason why Bobby Lashley lost the Intercontinental title to Finn Balor, but he's also the reason that he managed to bring it back to The Almighty one. Lio Rush has been a thorn in the side of any opponent trying to take on Lashley, and he certainly knows how to be annoying.
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With the threat of the Demon King, you can guarantee that Rush is going to find as many ways possible to interject in the Intercontinental title match at WrestleMania in order to help Bobby Lashley win.
With that said, having Finn Balor bring back the Demon essentially neutralizes Lio Rush, and it'll be all the sweeter if Balor does overcome Rush and defeats Lashley. One would think that the way Lio Rush bumps, he's set to take a major one at WrestleMania. It's definitely going to be interesting to see how Lio Rush factors into all of this.