Mt.BtlMaster

A Mt.BtlMaster (Japanese: バトル山マスター Mt. Battle Master) is a type of Pokémon trainer that first debuted in the Generation III games, appearing in Pokémon Colosseum. It refers to the Area Leader of all of Mt. Battle - essentially the one man equivalent of Orre's Elite 4.

Generation III-introduced trainer classes
Ruby, Sapphire and Emerald
Aqua Admin \| Aqua Leader \| Arena Tycoon \| Aroma Lady \| Battle Girl \| Bug Maniac \| Collector \| Dome Ace \| Dragon Tamer Expert \| Factory Head \| Hex Maniac \| Interviewer \| Kindler \| Lady \| Magma Admin \| Magma Leader \| Ninja Boy \| Old Couple \| Palace Maven \| Parasol Lady \| Pike Queen \| Pokémon Ranger \| Pokémon Breeder Female Psychic \| Pyramid King \| Rich Boy \| Ruin Maniac \| Salon Maiden \| Female School Kid \| Sis and Bro \| Team Aqua Grunt \| Team Magma Grunt \| Triathlete \| Tuber \| Winstrate \| Young Couple
FireRed and LeafGreen
Cool Couple \| Crush Girl \| Crush Kin \| Painter \| Team Rocket Grunt
Colosseum and XD
Area Leader \| Athlete \| Bandana Guy \| Bodybuilder \| Casual Dude \| Casual Guy \| Chaser \| Cipher \| Cipher Admin \| Cipher Cmdr Cipher Head \| Cipher Peon \| Cipher R&D \| Curmudgeon \| Deep King \| Fun Old Lady \| Fun Old Man \| Glasses Man \| Grand Master \| Guy Hunter \| Kaminko Aide \| Lady in Suit \| Matron \| Miror B.Peon \| Mt.BtlMaster \| Myth Trainer \| Navigator \| Newscaster \| Pregymleader Rider \| Robo Groudon \| Rogue \| Roller Boy \| Shady Guy \| Sim Trainer \| Spy \| St.Performer \| Supertrainer \| Team Snagem Snagem Head \| Thug \| VR Trainer \| Wanderer \| Worker