Pokemon Aggressive Red skill box in the monster's hand.
1. After defeating the poison hall leader, a skill machine will be given to you. If you take a Shivering Salamander and look at it, you will be given a Shivering Salamander mega stone.
2. You can now use surfing in the wild. You can go to places that you couldn't go before. Challenge monsters and obtain the monster's inherited skills before you can exchange them for skill machines.