It was available exclusively with the Pokemon Center special edition of the Paldea Evolved Elite Trainer Boxes back in 2023
In general, Pokemon cards and sets always go up with time
High: Modern, Legacy, Vintage, Draft, Commander (yes, Commander can be complex)
Its not too hard to pack your deck with effects that let you play additional lands and some landfall abilites for a deck thatll get you singing: Ive Been Everywhere. Flubs, the Fool can be powerful, but Im knocking it down a peg for being a Buy-a-Box exclusive
A Nostalgic Time Capsule of Pokmon History : Owning a sealed EX Crystal Guardians Booster Box is like owning a moment frozen in timea treasure from Pokmons legendary EX era
As the art had to be a seven-headed dragon, I looked for a mechanic that played into the cards seven-headedness