Accelgor (Lv. 75)
Bouffalant (Lv. 75)
Druddigon (Lv. 75)
Vanilluxe (Lv. 75)
Escavalier (Lv. 75)
Volcarona (Lv. 77)
Alder is only in pokemon black or white.
trainer n he beats alder
Alder
60+
shoot alder with a gun
Most of his Pokemon are bug type.
Volcarona,accelgor
Well you defeat alder and he will register your pokemon on the hall of fame. After that you have to find all seven sages including ghetsis.
at the Pokemon league
you can do is cat the 3 legend Pokemon
at the end of it
after beating alder and seeing or catching all Pokemon