I depends on the moves and stats, and I don't think that shuckle is strong, but the Pokemon are all rare, do if the stats are good I think you desreve a 4.7 out of 5.
you have to train a lot or you can use action replay to get a lot of rare candies... beware though, your Pokemon arent as strong when you use rare candies
I really don't know... but check out this site: http://www.pokemon.marriland.com/diamond_pearl/team_builder
although i would say that some of ur pkmn r weak against Ice... but check it for...