Each card also generally represents some specific element derived from the game's genre, setting, or source material
I'm not entirely sure it was necessary, it's not like someone is rushing to put out an Orzhov shadow or Esper shadow commander because, ugh
It still has major potential in a meta where Pok-Bodys and Pok-Powers rule the format
As a result, some people in the Quiet Speculations Discord channel asked why I didnt use something like Trade Routes from Quiet Speculations Trader Tools to find the best buylist prices on some of the cards
Your 4 color decks mana sources should produce two colors on average.
Furthermore, pre-release and promotional cards which have date or logo stamps are an even rarer base card which can also have these types of errors, and are highly desirable