Right now the top 10 Pokmon TCG Ascended Heroes cards (according to average prices on secondary markets like TCGPlayer and eBay) are:
Its my single favorite Enchanted so far, and I would not be surprised to see it retain a lot of value overtime
Furthermore, this fusion is Level 6, meaning that it is useful for making XYZ monsters with the Fiendsmith archetype's most important cards
You can activate it to turn off a Rakdos player's hellbent abilities, force a player to draw an eighth card before their own cleanup phase so that they need to discard, or interfere with Flubs, the Fool's card replacement mechanic
In most trading card games, players have access to a deck that contains anywhere between 40 and 100 cards and a sideboard that they can use to switch cards in and out of their decks between games to counter the opponent
With all that said, I think we can look at staples and Side Deck choices