 The event is traditionally characterized by having Survivor Series matches, which are tag team elimination matches that typically pits teams of four or five wrestlers against each other.The 2006 event was the twentieth event in the Survivor Series chronology and featured wrestlers from the Raw, SmackDown!, and ECW brands.It was the first Survivor Series to include ECW, a relaunch of the former Extreme Championship Wrestling promotion that became a WWE brand in May, subsequently also being the first to feature the ECW World Championship (though not defended as the champion was involved in a Survivor Series match).