Pokemon TCG: Blastoise-GX Premium Collection - Rules of Play says:

Trainers and fans of Water-type Pokémon, your day has come with the mighty rush of the Blastoise-GX Premium Collection, ready to wash away all doubt about which Pokémon rule the waves! Expand your collection with foil versions of mighty little Squirtle and its Evolutions, plus an awesome oversize version of Blastoise-GX for display. Chart a course to victory with all the mighty currents at your command!