He's almost immune to pain - Mick Foley has sustained many injuries throughout his career such as having 2/3rd's of his ear ripped off, 8 concussions, 4 front teeth knocked out, a broken cheekbone, a separated right shoulder, 2nd degree burns on his arm and shoulder, 2 herniated discs, bone chips in elbow, broken right wrist, torn alb and meniscus, bruised kidney, 5 broken ribs, broken left thumb, over 379 stitches, dislocated left shoulder, broken jaw, and his nose broken twice. Mick Foley has bore unimaginable pain in some of the most brutal matches in pro-wrestling using barbed wire, glass, thumbtacks, C4, spikes, nails, and so on.
He's been in classic matches - Almost every WWF/WWE fan is familiar with his Hell in a Cell match with the Undertaker in 1998. The WWF universe was shocked when the Undertaker threw him off the cage twice. He's competed in the King of the Deathmatch tournament in Japan of 1995. He's been in some of the best feuds with Triple H and others. Though not a highly skilled pro-wrestler, Mick Foley has been extreme in almost every hardcore match he's competed in.
Mick Foley has a solid character - Mick Foley is a hardcore legend mainly because of his character. What distinguishes him from many extreme hardcore wrestlers? He infused his passion, past traumas, suffering, emotions, and emotional pain in his character. He is a great storyteller in the business when he recalls his life experiences. He viciously shrieks when his hands claw at an opponent's face. He laughs when he is in pain and knows exactly how to use anything as a weapon.
Mick Foley will always go down in history as the hardcore legend who popularized hardcore wrestling. He passed on the torch to the next generation and already paid his respects to the business.