Pokétopia Master Mysterial (Japanese: ポケトピアマスター ミステリオPokétopia Master Mysterio) is the tenth and final Colosseum leader in Pokémon Battle Revolution. He is the head of Stargazer Colosseum and all of Pokétopia. Mysterial is an expert illusionist and will do a vanishing trick if he is defeated. He levitates his Poké Balls when sending his Pokémon out.
Mysterial is the only Pokémon Trainer to have the Trainer classes Pokétopia Master and Master of Masters (Japanese: マスターオブマスターMaster of Masters). However, if he is defeated on the first encounter, "Pokétopia Master" will be unlocked for all Custom Passes.