The Data for World Tournament
has 10 mysterious trainers (they're on the very end of the list). Each of them has a type speciality (the last three are Dark-type) and a "star" Pokemon.
Botuli (Poison) - Muk*, Swalot, Dustox, Skuntank, Victreebell, Gengar
Ieji (Ground) - Krookodile*, Camerupt, Gastrodon, Claydol, Hippowdon, Steelix
Cart (Psychic) - Starmie*, Beheeyem, Sigilyph, Exeggutor, Jynx, Medicham
Walter (Bug) - Heracross*, Galvantula, Scolipede, Parasect, Ninjask, Foretress
Rensuke (Ghost) - Cofagrigus*, Drifblim, Sableye, Golurk, Gengar, Banette
Ryuichi (Dragon) - Salamence*, Druddigon, Altaria, Dragonite, Gyarados, Garchomp
Thatcher (Steel) - Aggron*, Bronzong, Magnezone, Skarmory, Steelix, Bisharp
Vito (Dark) - Shiftry*, Honchkrow, Absol, Skuntank, Crawdaunt, Sableye
Illusane (Dark) - Umbreon*, Scrafty, Sharpedo, Spiritomb, Cacturne, Krookodile
Bonnie (Dark) - Drapion*, Liepard, Mandibuzz, Bisharp, Weavile, Houndoom
Who they are? When do they appear? Looks like Battle Subway Trainers appear in Driftveil Tournament. So who are those people? Dummy data?