When Kid and Law discovered that Jinbe had joined the Straw Hats, both captains were shocked.
1. The Straw Hats have one more member who is as strong as the Monster Trio
If you’ve noticed, three of the strongest members of the Straw Hat crew are from the East Sea.
And Jinbe is a former Shichibukai with the second highest bounty in the Straw Hat crew, his power level is definitely on par with the Monster Trio.
2. Jinbe may be the most dangerous warrior in a sea battle
In Wano, Jinbe can destroy an entire warship with his own strength.
3. Super train driver
As Jinbe showed on Whole Cake Island, he is a great train driver.
4. The cool-headed man watched the battle
Jinbe is sometimes angry and emotional, but in battles, he always shows calmness and maturity, and evaluates things with a cool head.
It’s like a hint that Jinbe might be some kind of commander in battle who can analyze what’s going on and give orders to others.
If indeed Jinbe can direct the battle and then order the Straw Hats like Franky, Sanji, Brook and others (since they don’t usually wander around like Zoro and Luffy) to attack the enemy
5. Increase the reputation of the Straw Hat crew
Actually, the Straw Hats also have a high reputation.