I doubt this card is ever going to go for a lot of money, but Ive been wrong before
what is the expected delay between drawing a card and first being able to play it?, how much mana were we able to spend on non-ramp, non-draw spells?, or any other possible metric for playability) Right now every card still has to be manually modeled in order for the tool to be able to simulate it
Graded Population Report: Charizard GX #SM195 Visualize the distrbution of grades in the chart
If you are active member or user of one of those marketplaces, you may have a good sense of what things are selling for but you will only have visibility into the groups or streams that you actively participate in leaving a lot of unknowns
Other than learning about the Pokmon in the games, I also check whether it has appeared in the animation series, on TV, or in the movies