Levincia is primarily utilized in turbo decks that need to recover energy after using it to deal damage and knock out a Pokmon by discarding energy from the board or the hand
You can discard Dragon-type Pokmon, like Noivern ex [Paldea Evolved], with Earthen Vessel, search out a few Grass Energy, and accelerate those Energy with Gardenias Vigor [Astral Radiance]
The ETB effect makes Vendilion Clique a bomb card in many Constructed builds
And, admittedly, this is the cheapest possible way to become the owner of such a card, even if its the most bedraggled one imaginable.
Where to buy Pokmon Phantasmal Flames Typically, we like to buy from Magic Madhouse when new sets become available, mostly because they have such a wide variety to choose from