Walter nodded. He'd found the material rewards from the Gym Battles to be... somewhat lacking in certain aspects. But there was one prize that had exceeded his expectations in every way.

"That is wise. And if you defeat all the gyms in one region, they will give you a Key Stone; it facilitates a unique power that I have been testing in my gym battles in this region, called Mega Evolution. You may wish to look into it. Only certain Pokemon can use it."

At his side, Assumption nodded eagerly. Yes! Mega Evolution looked like a lot of fun, and it was very powerful.