As Ive said before, most if not all decks should be playing a good amount of mana dorks and rocks, but in this case you should be paying particular attention to it because you know whats coming
Trainer cards are a bit more complicated - they're basically support cards, with myriad different effects, and they're often the glue that holds a Pokmon TCG deck together
Depending on the results, you get to create Treasure tokens equal to twice the number of profit votes
A good example is Robert E
This nostalgic appeal, combined with the massive popularity of the Eeveelution family, keeps demand high across all generations of collectors
Its why Tarmogoyf and Snapcaster Mage are among the better creatures, why Deathrite Shaman is banned, and why a huge percentage of the delve cards have entered competitive decks at one time or another or have been banned themselves