To get it you need a pokemon that know surf and dive and the itemfinder. Go to the abandoned ship and go to the dive part.You will see six door and there will be two door open you see a blue star go to the star and press a and you get a key.You will keep on finding key until you see a pokeball in one inthe bottom side and a pokeball in the top side.In one of the poke ball there will be a luxury ball.When you see a scanner go to guy that by himself in the top of the ship. He said to give the scanner to prof.stern. When you him the scanner he give a choice of a deep tooth and a deep scale. It work for me and I choose the deep scale because it look better.