Ace's death has left a lasting mark on the history of One Piece and Luffy's life, but fans seem to believe one important lesson by Shanks could have saved him.

Luffy would become the strongest ... in to claim the tournament's prize. Sabo got his hands on the Flame-Flame Fruit, the same fruit Ace had once eaten, and ate it. Sabo immediately gained ...

Luffy gathered allies like Bonchan, Jinbe, and many other prisoners, forming an army that would later raid Marineford to save Ace before the Marine Corps' big dogs. He would then be taken back to ...