It's always weird when a card is released that is actually a downgrade of a previous card, and yet the new card is still very good in a relative sense due to the absence of the original card it is mimicking. In this case, the original is Double Colorless energy.
I always like when the "come back from behind" angle is present in this game. Cynthia's and Torterra lv. X are really the only cards out right now that really utilize this angle, and Upper Energy-- even if it is a watered-down Double Colorless-- is a welcome addition.
I want to work this in to Ludicolo. That card has so much potential, especially if Dialga G dies down (which it may, with the introduction of Flygon, Infernape 4 lv. X, etc.), because then it can abuse things like Cherrim and/or Shaymin lv. X. Upper alone will help it a lot in my opinion.