Badd Blood, October 1997: The debut of Kane
The Badd Blood pay-per-view was overshadowed by the tragic death of Brian Pillman (who lives on in one of WWE '13's three DLC packs, as an aside). 'The Loose Cannon' was found dead in his hotel room just hours before the event was scheduled to begin.
Understandably this took an emotional toll on the wrestlers who competed on the night, and the show was looking like being a washout until the main event, where the Undertaker and Shawn Michaels saved the show by putting on a masterclass in the first ever Hell In A Cell match.
The match was memorable for two things: one, the brutal amount of damage Michaels sustained as the Undertaker pinged him around the cell like a pinball; and two, the debut of the Undertaker's demonic brother, Kane.
Paul Bearer had hinted at Kane's imminent arrival in the months prior to Badd Blood, but no-one knew when or where it would happen.
The answer was during the thrilling climax of the Badd Blood pay-per-view. As 'Taker was preparing to polish off a bloodied Michael, the lights dimmed and the now-familiar organ music chimed over the PA system.
Kane stormed the aisle, tore the cage door from its hinges and treated his storyline brother to a Tombstone Piledriver.
A dizzied Michaels was then able to drape himself across an unconscious 'Taker for one of the spawniest wins in WWF/E history.