With over 216 Pokmon Cards to collect, the Brilliant Stars TCG expansion has a lot for both players and collectors to love
Because of the color on the card due to the print layers, this card cant be replicated with Acetone or similar chemicals like some other blanks
While the Cagebreakers are especially useful in the later game, Soulbinders should be played at a time when your own battlefield is already well filled with creatures or there are creatures in play that can buff him
However, since there are many cards that completely refill hands, the price hike is most likely due to the legendary status of the cards
He also has other highly useful abilities for any prowess-themed deck.
I've mostly been focusing on Laughing Jasper Flint, and Olivia, Opulent Outlaw is a kind of distant second at this point