While unlimited didn't technically start it "all" for Pokemon Cards, it did have all the same cards as 1st Edition Base Set, just without the stamp
Since you play from the bottom of your library, there are a lot of cards that help enable this strategy , be it putting cards from the graveyard to the bottom of the library and cards that look at the top cards and put some into your hand, and others to the bottom of the library
Before I explain why, lets be clear about what I mean when I say original set foil. To me, an original set foil is the first foil printing of a given card, regardless of any future promos
-HS Unleashed
Memnarch In the days before color identity existed, the cards which could go into your deck were determined just by the colors in the mana cost of your commander
So, the next time you sit down to trade, remember: its not just about the cardsthe connections, memories, and shared passion that make Pokmon such an enduring phenomenon.