Before the bans, Heartfire Hero was arguably one of the best 1-drops in the format because it's a 1/1 creature with Valiant, meaning it gets +1/+1 counters easily, and then deals damage equal to its power to all opponents on death
I think that's because it sneaks through using terms most cards don't use
Record-breaking Sales If we know the increase in sales volume from 2019 to 2020, when the Pokemon cards saw growth of 574%, it is no wonder that the price skyrocketed
But on top of that, as sets stop being produced, cards become rarer, further increasing a card's value
After Tera-type based sets like Raging Surf and Obsidian Flames, this yearly set is themed around the creepiest species in the Pokemon world, and everyone is eager to find out more about the list of cards