Guys help, it seems that my team is underpowered
Got 2nd evolution of Luffy, Zorro and Sanji at lv 17+ , and Shanks & Chopper
but i keep getting difficulty at Arlong Park
In fact since Baratie i depend on strong captain from Friend. (noob opinion, but Miss Valentine skill that double HP seems very good for me)
What character should I farm at this point?
Still saving my small rainbow gem that i have for Sugofest that i don't when will gonna happen
I think Arlong is the first stronger Story Island Boss anyway, so having difficulties there isnt too surprising. Well....and he is actually the character you probably want to farm at this point in addition you need to get your Usopp to his
Golden Pound Version asap, because of his 3 turn delay. He is the most essential unit in the game.
You should also start adding Gaffers from the Google Doc linked in the opening post - having a solid amount of friend captains is essential in the early part as well.
1. Evolve Usopp to Golden Pound Usopp
2. Evolve Luffy --> Gear 2 Version, Zoro --> Asura version, Sanji --> DJ Version, Nami --> Mirage Tempo ( though this isnt THAT important in the beginning)
3. If you get your hands on Arlong you can start a Slasher team and team up with all those Mihawks in your Friendlist. This will make things a lot easier and you will be able to run a Arlong/Zoro/Shanks/XXX/Golden Pound/MIhawk that should be able to clear Story Islands.
You could also farm Cheff Zeff on Baratie Stage 03 - he is the best farmable Fighter Capatin, but i would focus on Arlong first. If you are "lucky" you might get him via Sugo and wont have to waste time farming him.
Edit:
In General your current team doesnt work well together since you are missing the right units. Luffy, Zoro, Sanji etc. they all dont benefit from Shanks Captain skill (if he is your leader).
If possible try to focus on one color first until you have Captain that allow Rainbow Color team like Slasher (Arlong/Mihawk), Fighter(Zeff, Jinbei), Shooter(Wiper) etc.