Pecha berries should be sweet.
Eeach type of Berry is numbered, the higher the number the rarer the Berry.
Occa berry.
There are 22 flying-type Pokemon.
Riolu is a Fighting type pokemon.
electric type pokemon
Type into google Pokemon diamond cheats and it should help you out from there
You can do that by keep on battling with that Pokemon, or using a specific type of berry.
in Pokemon diamond they are -aaron - bug type - bertha - ground type - flint - fire type - lucian - psychic type
Remoraid is a pokemon(water type)
You type numbers in
fire type
you dont