After the transformation was complete, the bright light had died down and Dark had calmed down. Dark looked at the two and kind of just waved. Lucario on the other hand, cried and ran over to Dark, grasping his side and letting out his sorrows. He was upset, knowing that his horse friend may never be able to change back into his previous self. Justin, hoping to relieve the issue, he picks up the evolution stone to see if there was a way to reverse the effect. But to their avail, the evolution stone evaporated and turns to dust, reduced to atoms. Dark having already calmed down, he didn't really know how to express how he felt about being (probably) permanently changed into a Serperior. Justin felt bad, he made his friend do something he didn't necessarily want to do. Justin apologizes to Dark. Dark responds saying its alright. On the other hand (or paw,) Lucario... Was mad.