In the MMORPG
World of Warcraft: Rogue Mage Priest.
It refers to the most used 3vs3 team setup for arenas in
World of Warcraft, consisting of a Mutilate specced rogue, a Frost specced Mage (sometimes, but rarely Arcane) and a Discipline specced Priest.
Its
popularity comes from the high CC (Crowd Control), Dispel balance and burst DPS (Damage per Second) which has made it stand out from other setups since the beginnings of arenas.