Liam called out Hydro to be his partner in the example. He than explained that not only are he keystone and Megastone needed, but the trainer and Pokémon need to have a strong bond between them. "Now, focus on your partner and fell the energy between you two. Then activate the keystone." Liam said as he activated his. Light emanated from his keystone and the stone Hydro had. The lights connected, and Hydro's form changed to his Mega form. He now had one huge cannon on his back instead of two slightly smallest ones, as well as a small one above each hand. Liam also explained that Mega Blstoise has an ability known as Wonder Launcher. It increased the power of a small handful of moves, four of which a Blastoise can know.