Stock tends to appear all at once a fulfillment center batch goes live, the "Add to cart" button lights up, and the available units sell out quickly
By considering factors like release year, quality, production, and monetary value, you can curate a Pokemon card collection that reflects your interests and aspirations
But it stacks with a lot of what I've seen in the game and heard other people talking about from other places, and it serves as a decent approximation of how likely you are to find certain Pokmon
A 2/1 and a 1/1 flier is already a great deal for 2 mana, but those tokens are artifacts, which opens up many more synergistic paths, and you often get more than just that first thopter from Loyal Apprentice
You can off one player with damage/Commander damage and fling your creature at another player for lethal too
I think over time they could become iconic in the hobby as a whole