For anything rules-related or for digitizing a deck quickly, nothing beats the official source
A 10, or Gem-Mint 10 as some companies call it, is pristine: no scratches, perfectly centered, exactly how it came off the press
While this is indicative of the attitude toward Pokemon cards shifting more toward business than a hobby for some, this card could have been a positive touchstone if it was embraced for the artistic style it emulates
PrintMTGs process is built around that: black-core stock, UV satin finishing, and consistent cutting so a stack of proxies behaves like a normal deck instead of a slippery pile of regret
Its also a neat way to mess with your opponents since you can control how opponent A blocks when attacked by opponent B
Alternatively, if there is a turn where a whole bunch of stuff of yours left the battlefield, it can come down as a larger creature