Zecrom is level 45, the musketeer trio are level 40 each, and thunderous is level 40 also.
If you havent beaten the Pokemon league then level them up a bit then defeat the Pokemon league
There is no legendary Pokemon in Undella Bay.
No, Dialga is a legendary Pokemon. Legendary Pokemon do not evolve at any level.
there is no "white" legendary in pokemon white. its black ( and called zecrom) and in the top floor of N's castle and then after u VS N
Once, you have caught one, it's the same as any other Pokemon. Yes.
Zekrom.
White Kyurem
It's not possible, legendary Pokemon cant be bred.
on pokemon black version u get the legendary pokemon reshiram!(sry if its spelt wrong) and in white u get zekrom! u get the legendary after u defet the pokemon ledge.
No.
no
volcarona may not be considered to be a legendary as it does infact evolve from a Pokemon called larvesta, but the Pokemon volcarona is considered to be a legendary Pokemon.