pokemon go japanese cards (1 Pack) Card Game S10b Booster Pack (6 Enclosed) Multicoloured : Toys & Games The Pokémon GO Card File (s10b) Special Set is a carefully curated product from the Pokémon Company Pokemon Card】Pokémon GO (S10b) Japanese

The five cards play much better than the land in terms of functioning as a source of mana without turn restrictions

This set also got a unique Special Edition Collector Booster Box, released later in 2023

They have a lot of similarities being 3 CMC planeswalkers that both have static abilities that might as well say half of your opponents dont get to play the game anymore. Both of these cards have had a massive impact on the game

17 Cynthia's Ambition Ultra Rare Galarian Gallery $15.31 Cynthia finds a home among the most valuable Crown Zenith chase cards with this stunning Galarian Gallery card featuring the trainer alongside her Gastrodon

Apart from this article, I dont know anything about playtesting in Pokmon, especially not during the WotC era