pokémon 151 jumbo booster box - chinese Pokemon Collect Hope Simplified This products language is Simplified Chinese. Chinese Booster Boxes – EvolutionStudioTCG

This is an interesting but strange guess because if they wanted to use the cards for playtesting it would make more sense to print them in English

However, they're also more pricey to buy, so getting some hard-to-find packs like Ascended Heroes at retail is a much better way to spend your money

The Differences Between Pokmon Cards in English & Japanese So, whats the big deal

Duelist Invitational

The Claws is one cheaper and just gives +1 power for your Mountains and then gives it first strike, so it's worse lacking toughness boosts and evasion, but it's also cheaper and both are very strong win cons in Aura form in decks with enough of those lands to count

Designed for both collectors and competitive players, EB-05 features stunning artwork and fan-favorite characters from the One Piece world