I enjoyed this episode mostly because of all the little callbacks, from the Beedrill shenanigans to Victreebell chewing Meowth's head to Ursaring chasing the trio away with hyper beam. I'm glad they made Pikachu the one who was sceptical over Meowth's friendliness, as he should know after all this time that Meowth's good guy turns are always fake. Meowth getting Ice Beam'd was a funny little moment as well.

A pretty good filler, IMO.