  This work concerns about multiscale multivalued McKean-Vlasov stochastic
systems. First of all, we establish the well-posedness for multivalued
McKean-Vlasov stochastic systems under non-Lipschitz conditions. Then for
multiscale multivalued McKean-Vlasov stochastic systems with parameters, in
accordance with the values of these parameters we obtain four different average
principles. Finally, based on these results, a large deviation principle is
presented by a weak convergence approach.
