I'll be honest, there is no point in spending $120 to power a theme deck for tournament play, how ever a a mess around deck against some of your mates, it can be satisfying to nerf you're mates meta deck with a deck that will never see tournament play, granted the likely hood of this happening is slim, but its still there.
Below is a video on how I powered up a Empoleon theme deck with meta relevant cards! I show the difference in the decks and how it should be used. I hope you guys enjoy!