Quoted By:
I was thinking about how the type spread has been throughout all the games and figured i'd make a game based around the most underutilized types. Feel free to take a STAB at it yourself.
Here's a typed out version of this image:
Gym Leaders:
Bug: Bugsy, Burghx2, Viola,
Dark:
Dragon: Clair, Draydenx2/Iris
Electric: Surge, Wattson, Volkner, Elesax2, Clemont,
Fairy: Valerie,
Fight: Chuck, Brawly, Maylene, Korrina,
Fire: Blaine, Flannery
Flying: Falkner, Winona, Skylax2,
Ghost: Morty, Fantina,
Grass: Erika, Gardenia, Ramos
Ground: Giovanni, Clayx2,
Ice: Pryce, Candice, Brycen, Wulfric,
Normal: Whitney, Norman, Lenora, Cheren,
Poison: Koga/Janine, Roxie,
Psychic: Sabrina, Tate and Liza, Olympia
Rock: Brock, Roxanne, Roark, Grant,
Steel: Jasmine, Byron
Water: Misty, Wallace/Juan, Crasher Wake, Marlon,
Other: Blue, Cilan/Chili/Cress
Elite 4:
Bug: Aaron,
Dark: Karen, Sydney, Grimsley,
Dragon: Lance, Drake, Drasna
Electric:
Fairy:
Fight: Brunox2, Marshal,
Fire: Flint, Malva,
Flying:
Ghost: Agatha, Phoebe, Shauntal,
Grass:
Ground: Bertha
Ice: Lorelei, Glacia,
Normal:
Poison: Koga,
Psychic: Will, Lucian, Caitlin,
Rock:
Steel: Wikstrom,
Water: Siebold,
I will post my own suggestion in a following post for easier readability.