[The Optimist]

He was a zombie, obviously not a Romero zombie but a zombie none the less. I'm thinking like Solomon Grundy. Every time he died and came back he gained more control and intelligence. He's gone from needing a leader to being independent enough to wrestle alone to having emotions to being intelligent enough to thinking himself a prophet but still be fooled by Vince until the point where he was able to live like a normal human and marry and assume hobbies like riding motorcycles and training in mixed martial arts. After Kane threw a piss party and went crazy about how human he was, he himself realized that he was far more powerful if he could inspire fear in his opponents and now portrays his scary zombie-super powers but keeps his personal life to himself.

If you look at it, the more he dies the more successful he becomes.