If you don't have a commander, Hidden Hideout's first ability produces no mana
Instant Instant (CTRL to add secondary) Land Inventors' Fair At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life
Yeah, definitely a solid battle trick
Further to that I slapped on a lot of "Lay of the Land" effects onto Charms and other modal card fairly often, both as a way to give low impact card neutral options thus lowering the narrowness of some of these cards, but also just as a good way to increase game consistency
Crush your opponents by casting FIST to knock them out in one punch
Characters from all over the history of One Piece, including anime, manga, and movies, are featured in the game, and there are even cards inspired by famous scenes from all of them