A bit of an alternative use for this, its GX attack is very eye-catching, you could tech an Ultra Necrozma-GX into a deck with Espeon-EX (i.e. Decidueye-GX?) with a single Counter Energy. If you're behind on prizes, you could bench this boy, slap on a Counter Energy, GX attack, then next turn devolve everyone, and use Decidueye to take care of anything that didn't evolve up through Rare Candy (Kirlia and Dartrix come to mind). I dunno if this is THAT great of a strategy but something that came to mind.