The most popular options tends to be mono-white Giada which solves some issues, sure or Kaalia, which is often not purely an Angel typal deck
#1 GOLD goes to Tigger-One of a Kind part of the ruby (arguably strongest) cards, and the most relatable Winnie the Pooh character to me
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
Wizards used to do this fairly regularly, but in 2006 actually un-errata'd cards that had this, and put in a policy preventing power level errata from happening again
It is of course, the exact same Pikachu illustrator, that was recently auctioned off for an eye watering $16,492,000