This is due to Pokmon's mechanics origins
For three Colorless Energy, you get to use Crisis Punch, an attack that deals 280 damage to your opponents active Pokemon, but it can only be used when your opponent has exactly one Prize card left, truly making a last resort in a match
"The growth has been pretty significant." Robert Hebb, who has assembled the entire 1999 Pokmon 1st Edition set in PSA 10 grade, has noticed the same trend
If you plan to build your own decks soon, I would recommend dueling against Sam or Aaron to get more Energy cards
Its presence in the Pokmon franchise is consistently refreshing, as it provides a unique blend of power and strategy, making it a beloved choice for players who enjoy formidable, non-legendary Pokmon