I think metal is getting too much love/attention in the upcoming set/releases. Of the three promos, Dusk Mane Necrozma seems to be the only good playable card. So, now we have metal pokemon that can do energy acceleration/snipe/remove weakness etc. which is the strategy for most of the competitive decks out there. Not to mention metal supporter. I think we're just missing a good special metal energy. Shield energy was ok, but doesn't live up to the upcoming hype for metal pokemon.