pokemon cards mew and mewtwo Pokémon & GX SM11 097/094 – BanzaiHobby Secret Rare Retreat cost Pokemon Color Cards - Mew

Its inclusion in the deck makes it worth grabbing as a potential alternative to Queens Castle

Cosmogoyf is almost more of a combo card than some midrange threat, and it looks suspiciously like the Gren Maju Da Eiza Yu-Gi-Oh

For the longest time this was thought to be an error and done by accident, but thanks to the info presented in this thread by @styluspt , we now know it was most likely intended as the first English Secret Rare card instead

During their turn, a player can play an evolution on top of their active Pokmon, put a Pokmon on their bench, play an energy card on a Pokmon, play a supporter/ally or play an item card

Some Items, Locations, and abilities grant lore too, but questing is the engine