Theyre creatures that get stronger whenever you play a land card (think of land like the gas that powers your decks engine) and have incredible synergy with other card types, leading to a deck that will overwhelm your opponent
Meanwhile, Dark Head hits your opponents Pokemon with 160 damage if it is Asleep
Its useful to know how far youre thinking about deviating in power level when taking a card that works with your current plan in some way, but at least in the beginning, a straight ranking system can go a long way
X can't be 0. Activate only during your turn
Then, later in the game, it will give you card advantage and selection at the end of your opponent's turns
The Energy cards were some of the cheapest prizes on offer and, so, back in the day, it was really easy to get quite a few, and yet now it's quite the opposite, and they stand as some of the most stunning yet valuable Energy cards to this day