In the case of 1999's Shadowless Holographic Charizard card ... with grading specialist Professional Sports Authenticator (PSA). The Pikachu trophy cards weren't made again after 1998.
If you want to compare to something Charizard, a holographic 1999 first-edition “Shadowless” Charizard card, with a PSA 10 Gem Mint rating, sold for $311,800. Of course, that card is not ...
Autograph Authentication: Utilize services like PSA/DNA or JSA for signature verification. Holograms or Serial Numbers: Check for manufacturer authentication marks. Grading Standards: Use ...