Japanese backs were updated in the 2000s but still retain the Japanese branding, meaning todays Japanese cards and English cards have distinct back designs
There is no worry about falling off or lose with the double protection
It also reduces the opponent's next attack by 30, meaning it can take over battles if Golem comes into the active spot at the right time
Characters on Locations are still considered in play but cannot move back to the main battlefield
You can then cast that card for as long as it's exiled, though you have to pay the mana cost, colors, and all, which is why the Treasure tokens are so important with Rev
Among rare pokemon cards, high-grade Mewtwo versions are consistently cited alongside Charizard and Pikachu as the most recognizable names in the market, and for good reason: Mewtwo has been among the rarest pokemon card options in every major era of the game's history