Its also gotten stricter over time, according to SGC grader Derek Grady, who told Sports Collector Digest in 2019 that In the early days of PSA, cards that were graded an 8 for the most part now if you cracked them out and resubmitted, they would grade lower. Nowadays, PSA uses the half-point system that many other services in the card grading industry also favor, which can be broken down like this: PSA 10 / Gem-Mint (GEM-MT): a virtually perfect card, according to PSAs website
It costs one more mana but is a land on the other side
I do wonder how much '637 and '638 getting graded together really increases the odds of '637 being a no rarity as well the probability that neither the owner nor the grader noticed a difference in the Japanese text is unfortunately not zero Kinda makes you want to send both versions together to give the grader a eureka moment
I'd recommend using resources like TCGPlayer to find the market average, and then try to find listings below that, so you're at least paying cheaper than you might be
This is the current version of Charizard that is sought after by collectors the most, so be sure to check to see if you have one
That plus the low initial mana cost gets it onto the list
