Mewtwo GX #78 Prices Pokemon Shining Legends Pokemon Cards PSA 10 Mewtwo GX 082 072 SM3+ Shining Legends 2017 Pokemon Card Japanese eBay The infamous Secret Mewtwo GX from Shining Legends aka Test Tube Mewtwo just sold in a #PSA10 for $4,000 on eBay Even with a POP 2,630 in PSA 10, this A PSA 10 Mewtwo GX Secret Rare from Shining Legends just sold for $10,351. #collectr #mewtwo #pokemoncards #psa10 #pokemontcg Mewtwo GX Shining Legends Pokemon Shining Legends MewTwo Pin Collection Unboxing