7. Finn Balor
With rumours of Finn Balor joining the main roster alongside the inbound New Japan Bullet Club stars, how cool would it be to see them forming a heel group that targets The Undertaker? It would be Balor, Doc Gallows and Karl Anderson, in a faction reminiscent of The Shield. Calling themselves "Balor Club", it would be a neat angle for all involved. Finn and Taker would clash at Mania, in what could be billed as demon versus deadman. Technically, it would be a fantastic match, owing to Balor's brilliance in the ring. It is the opportunity he has been waiting for. As for The Undertaker, Balor would make him look exceptional. Or, if WWE were being really bold, they could even think about Balor going over, but don't hold your breath on that one.