legacy of the master booster box One Piece Japanese TCG: (OP12) Card *This product also includes alternative art and parallel design cards from the above types. Amazon.com: OP12 Booster Box English
Description
The sets are clearly meant to be the Generation V version of Pokemon Card 151

Many collectors use them in conjunction with penny sleeves and consider them a reliable mid tier choice: better than generic toploaders, but more affordable than ultra-premium lines

Even if some cards arent valued highly, they still might be decent to good game pieces, so a playable set of them might command a slightly higher price

Eelektross #52 (Pokemon Chinese CS4aC | Pokemon Cards) prices are based on the historic sales
