Most of the Pokmon and Trainer cards featured in this crossover are Pokmon that were present from the very beginning in Pokmon GO, or have played a large part in the development in the game
Altered Ego Auton Soldier Callidus Assassin Clever Impersonator Clone Copy Artifact Copy Enchantment Copy Land Copycrook Dack's Duplicate Evil Twin Flesh Duplicate Gigantoplasm Jwari Shapeshifter Machine God's Effigy Masterwork of Ingenuity Mirrorhall Mimic Mirrormade Mockingbird Naga Fleshcrafter Omni-Changeling Phantasmal Image Phyrexian Metamorph Pirated Copy Progenitor Mimic Protean Raider Quicksilver Gargantuan Sakashima the Impostor Sakashima's Protege Sakashima's Student Sculpting Steel Stunt Double Synth Infiltrator Undercover Operative Vesuva Vesuvan Doppelganger Vizier of Many Faces Wall of Stolen Identity
If that bench contains other Garchomp exes, its a great chance to get them ready to switch in and deal out Sonic Dive, which has you re-discard two Energies to do 120 damage to any of your opponents Pokmon, whether benched or active
Much like with Zedruu the Greathearted, Zidane pays you off for donating permanents, just in a different way
Knowing the strategy is openly chaotic makes it fun when things go wrong, rather than hugely frustrating