Gold cards are quite cool and a basic fire energy is extremely fitting for a Charizard themed Pokemon expansion like Obsidian Flames
While it still requires 4 energy, it hits for 120 which is good enough to get the job done against Pikachu EX
At the beginning of each end step, if Wolverine dealt damage to another creature this turn, put a +1/+1 counter on him
Even though any one of these factors can contribute to the overall design of a card, a card is best when all factors come together
Red has haste enablers, so itll be easy to get a quick 6 damage to someones face if you drop this with the right support on the field
Then there's the peelable Ditto complication: Bidoof, Numel, and Spinarak each have a reverse holo variant with a hidden Ditto underneath a sticker layer