Don’t have much time so let’s see what I can pull up in 10 minutes…
087/S-P F Charizard VMAX Rainbow/HR - Traditional Chinese
Originally announced to have 500 copies by officials, but turned out the criteria of receiving one is so hard (winning 5/6 straight in regional-level tournaments which was only held 8 times with ~12 winners each) only around 100 copies were actually given out, making it the rarest of all languages released. We don’t know if the remaining 400 copies ever existed.
Also…
038/S-P T Charizard VMAX Rainbow/HR - Thai
Listed in official card database and revealed to public but never released. I treat this as a tease from the officials.