I left Inver's shack and I went across some metal tracks and entered Terminus Cave, but since there wasn't much to do there, I went back out to Route 18. I located a Max Ether as I moved around, then I spotted a Sky Trainer as I headed south and I battled him. I beat his Ninjask, Drifblim, and Flygon with Aerodactyl's Ancient Power and then I went down some steps and used Rock Smash to break some boulders apart. I then battled against a Black Belt near the boulders afterwards and I beat his Sawk with Aerodactyl's Fly and his Pangoro with Chesnaught's Seed Bomb. I then found a Super Potion and battled a Lass trainer near the red flower patches. After beating her Granbull and Dedenne with Pangoro, I saved.