This card checks the right boxes: exclusive distribution, limited time window, and a recognizable Pokemon that collectors actively chase
This can be decently helpful against Celebi Prime/Mewtwo EX as well, by discarding their Skyarrow Bridge and forcing Mewtwo to require seven energies attached between both Active Pokmon to kill your Reshiram after a Blue Flare
This is the cleanest split
With its status as a secret rare and its distinctive holofoil effect, Metagross is a sought-after card, part of the legendary Gold Star trio alongside Groudon and Kyogre
Honestly, my favorite line is to use Show and Tell to put a land into play and hope everyone else puts scary enough threats on board that they leave me alone and duke it out amongst themselves
For SA completionists who want both JPN-exclusive alt arts, Conkeldurr V SA is the lower-profile counterpart to Mewtwo V SA