#4: Rated RKO

By the summer of 2006, Edge had already established himself as a main event star, winning the WWE Championship twice that year.
Similarly, Randy Orton had proven himself as a singles performer, becoming the youngest World Heavyweight Champion two years prior, and having major feuds against the likes of Triple H and The Undertaker.
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Despite this, the two were made into a tag-team, and were actually created to give a credible threat to the recently reunited D-Generation X.
Dubbing themselves Rated RKO, the pair did just that, being a thorn in DX's side, though came up short at Survivor Series in classic 5-on-5 tag team elimination match action.
Edge and Orton would get the last laugh though, as at New Year's Revolution 2007, the Game suffered a real injury during a tag match, that'd force him to miss WrestleMania 23.