Some day well have a more definitive answer here (or if I had a month to go set by set and calculate with the unique number of foils and that particular set of languages), but until then, I think we should estimate higher
3 Hidetsugu, Devouring Chaos (Neon Green) - $195.99 One of four variants of this classic demon, this particular version of Hidetsugu, Devouring Chaos is the Neon Green variant
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Yes, there are builds where you can stock your graveyard up, but Im thinking you could reanimate this blue creature with something like Unearth or Helping Hand, or play it in a tempo build and cheat it in without casting with something like Collected Company
Apart from a handful of "chase" and "semi-chase" uncommons, everything else at this rarity goes into the bulk pile along with the commons