Bug Bite, which is a bug type move, and pluck
no.
eruption aquaring
no they're the same.
Yes, pokemon holding an everstone will still gain experience and learn moves like a normal pokemon, it just wont evolve.
shards can be used to trade with other people. in return, they may teach your Pokemon moves. there are 3 move tutors in Pokemon platinum that will teach your Pokemon moves in exchange for shards in a specific color.
you give it two a Pokemon that knows dragon type moves.
The same as in diamond &pearl
Ice and Fire
You can trade them to the move tutors so that your Pokemon can learn different moves.
What moves do you want it to know?
Use dark or fire type moves.
the move deleter in canalave city :) =)