#1 Kane

In 1997 The Undertaker was embroiled in a feud with his former manager Paul Bearer. Bearer took a fireball to the face at In Your House PPV and emerged later with an ultimatum to The Dead Man.
He wished that The Undertaker should reunite with him and if he disagreed, he would reveal his biggest secret. Finally, at Badd Blood, Bearer emerged with The Undertaker's brother - Kane who was rumored to die in a fire that Taker started.
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When Kane arrived in the WWE at Badd Blood: In Your House, it was the closest thing WWE fans ever got to a horror movie. While Undertaker was about to finish off Shawn Michaels in the first ever Hell in a Cell match, the arena turned red and fires started erupting.
Enter a demonic 7 foot monster who ripped the cell door with his bare hands and put down The Undertaker.
His whole gimmick of being The Undertaker’s brother who he burned down strangely worked. His debut and its subsequent effects resonated with the WWE Universe for a long time thus his debut is on the top of this list.
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