Heya. Well, I be farm for a time the IV stones and everything and since they can be obtained by smash rocks, I would to ask the best place/cavern to farm. I know there is the caves, but with one is the best?
Helios Sewers, specifically the room with a meloetta tile puzzle. It has a rock right next to an exit so it respawns. Though, you’re much better off farming the battle tower post game, assuming you’re that far.
the best way is go to cortisol road in dream world there is a hidden grotto,save before enter,now enter and try to get the dream mist if you dont find it load the game. after that go to la feu and use the dream mist to create an iv stone. ( it does not require three rare candies you can create an iv stone with 1 dream mist )now you have two ways :
1 do this six days and catch a ditto and give six iv stones and start to breed.
2 use this metod to give six ivs to a legendary pokemon that can’t breed
EDIT : if the battle tower works in your game it is a better way than mine