Really, it was probably for the best that none of the other children in my school could fathom the rules of the card game
While it does use energy counters as a part of its primary game plan, Pia Nalaar is more about creating Vehicle tokens of varying power
In short, Green has access to a number of creatures that hit both, such as Reclamation Sage, Acidic Slime, and Conclave Naturalists
It might not even be one at all
There are also other expensive Charizards, like the Topsun one in the list above, as well as EX prints from more modern sets
The Solo form can be found in the full list (reference picture here), and the School Form can be seen in the picture above