Found in the White Forest when Grace is a resident of the forest. You must use the Entralink to connect with Pokemon Black and visit that version's Black City to find this resident if this resident is not initially available. Pokemon White only-mariland
or if you dont count this as trading poketransfer from a past game
or go to dream world Rugged Mountain - Over 10,000 Dream Points -serbii
that dream world bagon will get the hidden ability sheer force -Sheer Force: Moves with a secondary effect are increased in power by 33% but lose their secondary effect
