>>34030810Depends on what you consider underused. I personally like (Alola only) Crabrawler and Mudsdale. Outside of Alola, Nidoqueen / Nidoking, Alakazam, Machamp, Hypno, Kingdra, Tauros, Noctowl, Ampharos, Azumarill, Honchkrow, Ursaring, Houndoom, Donphan, Hitmontop, Ludicolo, Breloom, Exploud, Aggron, Sharpedo, Cacturne, Zangoose, Cradily, Walrein, Luxray, Gastrodon, Ambipom, Spiritomb, Abomasnow, Yanmega, Dusknoir, Stoutland, Musharna, Gigalith, Seismitoad, Throh, Scolipede, Krookodile, Darmanitan, Scrafty, Cofagrigus, Reuniclus, Vanilluxe, Escavalier, Galvantula, Klinklang, Beheeyem, Golurk, Braviary, Diggersby, Pangoro, Furfrou, Clawitzer, Hawlucha, Noivern.
There.