Ronda Rousey is famous for being a badass. Vin Diesel is famous for playing badasses on the silver screen. And together, they made one badass raiding team, apparently.
You can watch Rousey explain the game to an increasingly bewildered O'Brien below.
Rousey, who's promoting her return bout at UFC 207 on December 30, is a known video game fan, previously speaking at length about her enduring love for Pokemon. She's far from the only one to be sucked into the World of Warcraft -- .