#3 The Nexus (2010)
Has there ever been a more dominating and violent debut by a group of Rookies in the history of WWE? Making a debut as a team is never an easy task, especially when there are 8 superstars who are looking to make a strong first impact collectively, and this is what made the Debut of The Nexus a memorable one.
Having been on WWE's NXT show for almost 15 weeks, these up-and-coming superstars had been fighting each other and doing various tasks in order to earn the opportunity to be a part of WWE's main roster. However, not only did all of them appear on the main roster together, the way they did leave all the fans in the audience in a state of shock.
Attacking CM Punk and John Cena, two of the biggest WWE superstars at that time, during the main event of Raw, the 8 rookies went on a rampage as they literally destroyed everything - From the ring to the ringside area, From the commentators to the announcers - in a way that had not been seen on WWE in a long time.
Not only this, they disrupted the main events of WWE's next two pay per view main events, they even attacked Vince McMahon on an episode of Raw. Even though the duo had a horrendous next few months, thanks to that defeat in the main event of Summerslam, this debut moment was enough to leave a permanent memory in the minds of the fans.