Idk if it counts as plot .....
Hawkins predicting there's one person who has
1% chance to survive during Onigashima battle.
It is believed either the major key players like Law, Kidd or one of the Strawhat is that "person".
Many theorize these part and was huge thing back then.
Turns out its Hawkins himself, like are you trolling me?
And Orochi multiple fake death plot just so Hiyori can have a closure with him and still in the end Denjiro need to come and save her ass.....one of the most useless and flop execution plot ever.