Plenty of cards from that set offer benefits based on the number of party members or even having a full party with one of each creature type
Living End is an exception here, as it can fight back against Endurance with its own recently acquired free spells in Grief and Subtlety, and is currently the only graveyard based deck in the format putting up solid results
If you want a complete playset of investigator cards then the Return to boxes should be picked up before any of the standalone adventures, which dont contain investigators cards you can add to decks when building
1995, 96, 98 Nintendo, Creatures, GAMEFREAK, 1999-2000 will be referred to as 1999-2000
Which I do but seems like everything is more expensive right now and spending more then I should
Learn to Play the One Piece Card Game at C2E2 2022 One Piece is coming to C2E2 2022