Nico Robin has the potential to be one of the strongest of the Straw Hats because of her Devil Fruit : r/OnePiece

Nico Robin/Abilities and Powers, One Piece Wiki

Why is Nico Robin so weak, I mean think about it she can make arms appear out of anybody's body and incapacitate them so shouldn't she be able to beat all of

4 One Piece characters that Nico Robin can beat (and 4 she would struggle against)

Ranking Every Straw Hat Pirate From Strongest To Weakest

Four Emperors, One Piece Wiki

15 'One Piece' Characters We Wish Could Join The Straw Hat Crew, Ranked

Discover the Powers of 124 Devil Fruits in One Piece — Eightify

One Piece

One Piece: 8 most feared Straw Hat Pirates after the Wano Arc

People really need to remember that Luffy's power is 100% earned through pure hard work and determination : r/OnePiece