According to their list, the title of number one most expensive Pokemon Card at $191 market value belongs to the alternate-art variation of Umbreon VMAX which showcases the dark type Eeveelution atop of a house poking at the moon
Back In My Day Back In My Day features four classic cards, reprinted with the retro frame and new artwork from Ralph Horsley, James Bousema, Wayne Reynolds, and Ron Spencer
Add on the fact you get the double damage for all sources you control to opponents or their stuff, and youre cooking on ignited gas from not one but two angry heads
Sugimoris signature, of course, adds a significant extra rarity and value to the card
Bannings in more competitive formats are much more impactful, and no Commander players who were interested in the card had a chance to purchase one yet
This may have passed unnoticed, but its a big deal when you rely on technology to provide coverage on these tournaments