Okay first off a bit of a History lesson. Late into the BW era, Dragon was introduced as a type. The gimmick behind this was that they had no energy of their own, but instead needed energy from other types (Akin to Crystal Pokemon IIRC). A lot of them tended to be very powerful but also have very expensive attacks.
That changed when a card was made to aid dragons. A Special Energy that merged Rainbow and DCE together but locked it to dragon types (and removed the damage), that was called Double Dragon Energy. The catch, while DCE and Rainbow are among of the few that is unlikely to be rotated out, ever, DDE is at risk. And With it Dragon-types are at risk of being considered Awesome but Impractical.
Making it a basic energy would introduce a few new benefits:
That changed when a card was made to aid dragons. A Special Energy that merged Rainbow and DCE together but locked it to dragon types (and removed the damage), that was called Double Dragon Energy. The catch, while DCE and Rainbow are among of the few that is unlikely to be rotated out, ever, DDE is at risk. And With it Dragon-types are at risk of being considered Awesome but Impractical.
Making it a basic energy would introduce a few new benefits:
- First off would be that it no longer has a reason to leach from other types. Or at least not as much. But would instead have a unified source of energy (since Basic also doubles as colorless as well as their depicted type).
- It would also unlimit them as basic energy has no limit while SPecial energy is beholden to the same 4 copy limit (and DDE is a special energy)
- it would allow more synergy with each other as opposed to those that happened to shared a type with the energy they needed.
- Basic energy are also on the list of cards to never rotate out because they are a core part of the game-play.