rare nidoking card Pokemon - PL: Rising Rivals 29/111 end display Nidoking Illustration Rare (174) 2023

It could be argued that the cards which have surfaced from the 2009 contest were extra copies that made their way out of the printing room and onto various auction sites (that has apparently happened recently in the case of the Art Academy Primal Kyogre EX card, where the winner still has all 100 of their cards yet extra copies have been sent in to PSA)

It was likely not worth getting graded

A high value card to include is Chrome Mox

Some of the strongest, most fun decks in the format are built around legends that cost a couple of dollars and a full 100-card list you can assemble for less than a single dual land

Celestial Unicorn is the most played unicorn common in EDH for that reason

Sellingsealed (specific artwork)or packs to be opened on stream