Orthworm - sad that Klefki exists tho. Even tho it wasn't the requirements and the energy acceleration for M decks are bad. Magnezone is a Stage 2, so I won't consider it. Even if you use the ability you still gonna pull * sighs* 2 energy, it isn't enough. The attack is bad tho, let that sink in. 2-3
I know being a stage 2 puts limits on the deck, but several people in Japan (and now the United States) are playing Dialga/Magnezone (with a Miraidon and the new Lightning type Magnezone). It’s win rates on play.limitless.tcg’s online deck database are also pretty convincing, and outrank Oinkologne, which has a 41% win rate despite receiving plenty of hype on TCGPLAYER’s articles program. It’s individual matchups are where it’s viability gets questionable. It has over 60% win rates against the “novelty decks,” a 45% win rate against Lost Box, and under 25% matchup against Mew VMAX and Lugia VSTAR. So it’s E Block matchups are its primary struggle (since Lugia is coasting on the Single Strike Engine). It’s the ninth most played deck right now, too. My guess is that it’ll become a powerful contender after rotation (the 2024 rotation, that is). As for right now, it’s matchups are polarized, but it’s not the worst.
That being said, no, you're right, two Energy isn't enough to help Orthworm reliably attack once per turn. This card will be a fun addition to GLC, and, to a lesser extent, prerelease (?), but in standard, it's not likely to get much farther than use as a one-off tech. It's nice to see the thought put into this card, however. Maybe I'll be making a Metal type Gym Leader Challenge deck some day?