In Gym Leader Challenge, every card in your deck matters — including your middle evolutions. Metang might normally just be there to evolve into a Metagross, but now it might steal the show as the most important Beldum evolution. Metang has the powerful Metal Maker Ability, a sweet way to charge up Metal Energy to any of your Pokémon. While this ability relies on random chance to hit, it’s got a few sneaky upsides that you might not notice on first read. Metal Maker accelerates any number of Energy found, meaning that you can high roll or even stack your deck with cards with Supporter cards like Mallow or Ciphermaniac’s Codebreaking. And it places all the cards you didn’t attach straight onto the bottom of your deck. This is a sweet optimization that skilled players can take advantage of: seeing which cards are now on the bottom of your deck can inform what you might draw from the top of your deck with other effects. Small edges like this are the cherry on top for Metang. Once your board is sufficiently powered up, you can always “cash in” Metang and evolve it into one of any number of Metagross cards, which each in turn get better when they evolve from such a useful Stage 1 Pokémon. It may not do an insane amount of damage itself, but Metang checks all the boxes of a good support Pokémon, and will be a welcome edition in any Metal-type deck.