>>50314037>>50314073The only sequel to introduce new pokemon/forms before BW2 was Platinum, which gave us the Rotom forms and Shaymin Skye, both of which were event exclusive. BW2 was the first to introduce new forms that weren't event exclusive, in Black/White Kyurem and the therian forms (Keldeo resolute was also introduced in BW2, but he's event exclusive).