A core I built a team around and have been seeing success with is Flareon+Gastrodon+Ferrothorn. Classic FWG core. 4 immunities between the 4 of them, Flareon is one of the best checks to Clef and also checks specially based Pult, Hatterene, Rotom-H, Rotom-C, opposing Ferro, etc. Gastro switches...