The practical implication: Japanese cards are generally easier to keep in pristine condition because the card stock is less prone to certain types of edge whitening that occur during the packaging and handling process
Even for a relatively simple and un-interactive effect like self-mill, there are a dizzying number of ways to achieve it and all sorts of secondary considerations which might sway you towards one solution over another
This Pikachu has the move Spark, allowing it to do ten damage to a benched Pokemon
Otherwise, start with ST-01 or ST-28
Simisear is an unlikely choice for a pair of Ultra Rares in the final Sword & Shield special set, but hey why not, right
Lastly, near-mint (NM) copies of Dark Machamp will carry a $58 to $72 price tag, leaving plenty of room to negotiate depending on the specific card in question