I actually like the idea of Rey vs Heel DB. Since Rey has basically been in the same situation but went about it in a very different way. For Rey there is no Plan B, he wins or he loses but either way it will be based on whether he can beat the guy in the ring fair and square. As Jakyl said when DB faces Goliath he has a slingshot that fires rockets, when Rey faces Goliath he tells him to drop his armor and sword and face him like a man.
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"Hope is allowed to be stupid, unwise, and naive." ~Sir Chris