@Devil:
So I returned to the game, and I'm currently at Arlong Park's 14th quest, unable to beat Arlong the only time I tried. My current team consists of: 3000 Worlds Zoro ( Captain ), Bazooka Luffy, Hatchan V1, Thunderbolt Tempo Nami and Usopp V1 ( The damn Yellow Penguin doesn't drop at Shelltown 1, and today there's 2X Drop there… ).
My other characters are: Mr.5, Sanji, Tashigi, Buggy, Vivi, Paulie, Jango, Gaimon, Vista, Higuma and Coby. I think my luck is pretty shitty when it comes to Rare Recruit... ( I also got 2 more Namis )
Any advice you can give on how to mold my team? For starters, I'm thinking of trying to recruit Zeff.
That's regular Coby, not Petty Officer Coby, right? You've got the beginnings of a decent Dex team with Zoro, Paulie, Jango, Gaimon, and Usopp, but that's not going to help much against Arlong and the other STR bosses.
If you manage to get Arlong (or Mihawk) you'll have a pretty solid slasher team, but until then maybe try using Luffy and Mr. 5 as the core of a STR team?