Xeno Bardock and Xeno King Vegeta ... Bardock dons a dark mask to gain enough power to stand against King Vegeta, reaching Super Saiyan 3 and giving the King of All Saiyans a serious challenge.

but it does give us plenty of fan favorite moments that we might have otherwise not seen from either Goku or Vegeta, such as the Xeno versions of them accessing the power of Super Saiyan 4!