Answer 1

You can't get a ambipom in heart or soul silver but you can get a aipom and evolve it. You can find a aipom at Routes 28, 33, 42, 44, 45, 46, Azalea Town, and Mt. Silver (Headbutt)

Comments

more info on the evolve part. get aipom to learn double hit and level it up lv 32.