Update: I've since acquired the missing holographic Torchic and have given the extra cards out to children in my neighborhood
There are actually a fair number of other God creatures you can play in this deck to break Zodiark's symmetry, like Aclazotz, Deepest BetrayalAclazotz, Deepest Betrayal, God-Eternal BontuGod-Eternal Bontu, and if you're in Modified Bracket or higher, Tergrid, God of FrightTergrid, God of Fright, which is particularly brutal alongside Zodiark
After two uses of Frost Bullet, applying three damage counters to an opponents Benched Pokmon each time, it can then be Knocked Out completely on the following turn
Collect Rare League Cards by revisiting Gyms and old Rivals If more Pokemon battles are what you crave in the post game, your best bet is actually to journey back to the various gyms where you'll find some all-new post game challenges worthy of the Champion - all-new raid-style boss encounters with Dynamaxed Pokemon that essentially amount to single-player raid bosses of a sort
Badass Arm-Fold: Both Great Maju Garzett & Legendary Maju Garzett have these
When Mew functions, it fires on all cylinders and is nearly impossible to beat, but it's kept in check by its own inconsistency and by Darkness and Arceus VSTAR / Path to the Peak decks for now