Cards featuring iconic Pokmon or distinctive artwork also tend to hold collector interest over time regardless of the format they came from
exra: x1 armades, keeper of boundaries x2 blood mefist x1 dark highlander x1 giganticastle x1 scarred warrior x1 star eater x1 underworld fighter balmung x1 void ogre dragon x2 adreus, keeper of armageddon tips: -the deck is mainly based on sending dark monster cards to the graveyard and swapping them back and forth from the banished back to the graveyard to gain attack or to special summon monsters
Its obviously great in Limited, too
Some great reprints of generally good cards also came with the structure deck
Best Selesnya Token Commanders (Rhys the Redeemed, Trostani Discordant, and Emmara, Soul of the Accord) Selesnya was really the first optimized selection of colors for token decks in Commander (then EDH), and credit for that falls squarely on Rhys the Redeemed
Distribution was extraordinarily limited