This factor alone should be enough for the Pokmon TCG Pocket game developers to rethink the card
One of the worst things you can do is buy into a card whose price has been inflated by lots of optimistic speculators only to see the price crashing down when they all start to sell
Aether Hub, Harnessed Lightning, Glint-Sleeve Siphoner, and Whirler Virtuoso are all fine energy-based cards that can be played outside of a true energy sub-theme
Pokmon is a Japanese media franchise consisting of video games, animated series and films, a trading card game, and other related media
After you attach it to Mega Dragonite ex , you'll be able to recycle energies in your discard pile with Eelektrik BLK 31's ability
If it was up to my personal feelings only, Id have given Mabel, Heir to Cragflame this spot simply because I find it to be more fun as a card, not to mention that I really enjoyed her character in the story