Sinnoh Victory road is the semi final challenge until brody figures out how to add kalos, its not very hard to get through You just need HM Surf and HM waterfall to complete this area! There are many interesting pokemon to try to find but watch out for elites, their max level that i have seen is 105! The trainers arent too bad, but once you get through. Trainers be prepared! your final challenge of the Sinnoh elite four awaits!