Chart shows the price of Glalie EX #155 at the end of each month going back as long as we have tracked the item.
Since this expansion's release, it's been nearly impossible to get Prismatic Evolutions at market price
Other than the Trainer line-up, I find it to be a strong offering with good normal cards, great Alt Arts, and perhaps the best collection of standard Full Arts we've seen so far
"Harpie's Feather Duster", "Lightning Storm", "Cosmic Cyclone") are highly effective against "Yubel" decks as they are highly dependent on their supporting face-up Continuous Spells/Traps, "Nightmare Throne" and/or a Set "Super Polymerization"
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But aside from those, Pokemon like Pikachu, Nidoking, Poliwhirl, Machoke, Dragonair and Caterpie get awesome illustration rares to make the set feel like a true celebration of the entire first generation