#3 Edge & Christian vs. The Hardy Boyz vs. The Dudley Boyz
For the first time since the peak of The Hart Foundation, Rockers and Road Warriors, this feud made wrestling fans care about tag team wrestling.
Edge and Christian and The Hardy Boyz had fought a couple of times over 1999, but had their first standout match, the first ever tag team Ladder match, at No Mercy 1999. The match received a standing ovation from the fans both at No Mercy and on the following episode of RAW, and would turn the then heel Hardyz to face.
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The Hardy Boyz and Dudley Boyz began feuding in the weeks leading to the Royal Rumble 2000 event, resulting in the first ever Tag Team Tables match, which would be won by the Hardy Boyz. Like the Ladder match, this also received rave reviews. The Dudleyz would become Tag Team Champions at No Way out, while E & C would defeat the Hardyz to become number one contenders.
After a few more matches between the three teams over the next few weeks, the first ever Triangle Ladder match would be made for WrestleMania 16, and even more history would be made with yet another jaw dropping excellent encounter, which would be won by Edge and Christian. The trio of teams would reopen their feud in time for SummerSlam, and a rematch from WrestleMania. This time it would be called a 'Tables, Ladders & Chairs' match, and would be another action-packed epic encounter, and would again be won by Edge and Christian.
The Dudley Boyz would exit the feud temporarily, and E & C and the Hardyz would clash at Unforgiven in a Steel Cage, won by the Hardyz. The two teams would trade the titles over the next month, which included comically adding the Los Conquistadores gimmick. The Dudley Boyz would then re-enter the feud for more multi-tag team matches, this time aiding Matt and Jeff.
The Hardy Boyz then exited the feud, leaving it as E & C vs the Dudley Boyz, who would trade the Tag Team titles several times over the next few months until the three teams met once more for another TLC match, at WrestleMania X-7 with Edge and Christian leaving as Champs for the third time. They had one final TLC match on SmackDown in May, also involving Chris Jericho and Chris Benoit, and their trio feud ended here.