Who are your 5 manga characters that would make things super interesting in OP whether it is fighting or politics in general?
*Don't pick someone who is clearly too powerful for the verse*
1.)
Jiraiya's abilities are wide and diverse. The citizens of Wano could learn a thing or two from this perverted shinobi.
2.)
Beyond Netero. Oda loves to give his old characters some shine. If Beyond suddenly appears in the OP world, he would cause a commotion within the top tier community.
3.)
Gildarts got some of the most impressive magics in the FT verse. It would be interesting to see a dialogue between Gildarts and Shanks.
4.)
Itachi Uchiha. Will genjutsu work against OP characters? It would be interesting to see how some OP characters would deal with this illusion-like attack. Perhaps the observation haki would prove useful against this ability.
5.)
Viza. An extremely and eerily calm character with an equally terrifying trigger.
6.)
Yoshikage Kira. Enough said.
*Don't pick someone who is clearly too powerful for the verse*
1.)

Jiraiya's abilities are wide and diverse. The citizens of Wano could learn a thing or two from this perverted shinobi.
2.)

Beyond Netero. Oda loves to give his old characters some shine. If Beyond suddenly appears in the OP world, he would cause a commotion within the top tier community.
3.)

Gildarts got some of the most impressive magics in the FT verse. It would be interesting to see a dialogue between Gildarts and Shanks.
4.)

Itachi Uchiha. Will genjutsu work against OP characters? It would be interesting to see how some OP characters would deal with this illusion-like attack. Perhaps the observation haki would prove useful against this ability.
5.)

Viza. An extremely and eerily calm character with an equally terrifying trigger.
6.)

Yoshikage Kira. Enough said.