#1 The Shield
The Shield made an impact on WWE like no other group in history, and it all started at Survivor Series 2012 when 3 unknown wrestlers from NXT appeared from absolutely nowhere.
Their goal was to protect CM Punk and his WWE Championship, but over the next 3 years, the trio of Seth Rollins, Roman Reigns and Dean Ambrose would run roughshod over the entire WWE locker room.
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Their impact on WWE will never be forgotten, as all 3 went on to achieve great success as singles stars, but it was the shock and awe of their debut that captured the attention of the entire WWE Universe.
As we mentioned at the beginning, this debut was shocking, fresh and would lead to many incredible in-ring performances, so it was everything WWE could be looking for, and given what all 3 men would do in WWE, this moment will go down in history and never be forgotten.