Shanks is a powerful figure in One Piece. He was on Roger's ship and now is one of the Four Emperors. His bond with Luffy is ...

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.

While the earlier episodes mainly focused on Shanks passing ... focused on Luffy's inability to take any action to save Ace and escape Impel Down due to the presence of the sea.