Either get them from the hoenn berry masters ( found in Lilycove, and two other cities/towns/ routes, or search for them. Rare berries are only obtained from the berry masters. You can also get berries from the people at the flower shop on route 104.
you make them with berries
Blend berries at a contest hall. There is a contest hall in Verdanturf, Fallarbor, Slateport and Lilycove.
17 or16
There is Kyogre and possibly a Latios or a Latias.
There is no pastoria in Pokemon Sapphire
grumpig
Kyogre
with wings
you must have Pokemon fire red or leafgreen Pokemon emerald or sappire or ruby and Pokemon silver or Pokemon gold then migrate them
you already have it built into your bag!!!
you need to migrate it from sappire
You get dive in mossdeep city