Spiritomb - Only weak against fairy
Sableye - Only weak to Fairy
Those are the only Pokemon that come to my mind.
Sableye and Spiritomb - / - weak to
Swamper, Gastrodon, Whichsash, Quagsire and Seismitoad - / - weak to
Drapion and Skuntank - / - weak to
Rotom-Wash - / (Levitate) - weak to
Scizor, Forrestress, Durant, Escavalier, Genesect and Wormadam (Trash Cloak) - / - weak to