1. Shawn Michaels vs. The Undertaker - Hell In A Cell - Badd Blood 1997

https://www.dailymotion.com/video/x51u6mw
This match is simply legendary. It’s the first-ever Hell in a Cell match, and as the saying goes, the first one is usually the best. This match had things that no one in WWE had ever seen before.
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Although it started off rather slowly, it wasn’t long before the level of violence that defined the name ‘Hell in a Cell’.
Undertaker threw Michaels into the cell structure many times, brutalizing him for the first half of the match. To compensate for his smaller stature, HBK resorted to smashing Undertaker with various objects, including piledriving Undertaker onto steel stairs.
Later, Michaels cleverly managed to find his way out of the cell, which led to Shawn being bloodied as he was smashed into the cell wall again and again. Then things got even more awesome as the two of them climbed onto the Cell’s roof, leading to the crazy visual of Shawn’s blood raining down onto the camera.
As the brawl got more intense, the crowd started roaring, more excited with each passing moment of carnage and destruction.
Lastly, while the match itself was epic, the ending is the best part. That’s because it marked the WWE debut of Kane, who was introduced in the most badass way possible.
Coming down to the ring accompanied by eerie music, fire and Vince McMahon screaming ‘That’s gotta be KANE!’, Kane ripped the Cell door off its hinges and Tombstoned his own brother.
This set in motion one of the greatest rivalries in WWE history, and brought together two of the greatest big men in wrestling history.