When collecting, its possible to choose which pack to open from a variety of expansions, and always remember that, unlike the physical game, packs in the same expansion with different artworks contain different sets of cards, so be mindful of what you are chasing when opening
However, the Pokmon TCG 30th Celebration Secret Mew has a few suspicious elements that might point toward it being fake
If you order printed proxies, look for black core stock in the 300 to 330 gsm range and either smooth or linen finishes
Where Can Fake Pokmon Cards Be Bought However, a cheaper option would be to make your own Pokmon card
His Supporter card allows you to simply search your deck for one Pokemon Tool and one Item card, and this has nearly endless potential and possibilities due to how many strong Items there are