Find yourself a ballin' ICE pokemon... that is the weakness of dragons. Watch out for his Charizard, though, and his Salamence in the rematch which knows flamethrower.
There Isn't
you dont make poffins in soul sliver
in the radio tower
no
goldenrod
jhoto and kanto regien Pokemon
you have to get it from Pokemon platinum or diamond
Happiny, into Chansey.
in the kanto region
in the cities
you cant
you dont use it it only unlocks a cave