For certain wrestlers, there comes a time when you've been around enough and done enough revolutionary and iconic things within the sport that you transcend "babyface" and "heel" categorisation. The Undertaker pretty much epitomises that concept. He debuted as a monster heel who no-sold offense and put his fallen opponents into bodybags before carrying them away. One of his earliest feuds was with The Ultimate Warrior, in which he sealed Warrior in an "airtight" casket on the set of Paul Bearer's "The Funeral Parlor" and with the aid of Ric Flair he became the youngest WWF Champion to date, defeating Hulk Hogan at Survivor Series 1991. His best heel work came in the late nineties, and the dawn of The Ministry of Darkness. What's really cool about The Ministry that a lot of people forget is that it's one of WWE's earliest examples of blurring the lines. During a time when The Ministry were feuding with the McMahon family, Ken Shamrock called him out on Raw, referring to him as "Mark" and suggesting that he needs to be brought back to reality. While The Undertaker may never truly be a heel again, his time as The Lord of Darkness is an important chapter of The Deadman's career.
