Luffy has received many amazing power-ups in One Piece over the years, but Gear 5 isn't the strongest of them all.

Luffy's Gear 5 is strong, but it will evolve even further later on in One Piece.

The Straw Hat Pirates are led by Yonko Luffy, but two more members of the crew will soon become Yonko-level as well.

One Piece has been showing off with a new fight between Gear 5 Luffy and Admiral Kizaru, and a new theory is suggesting that Gear 5 Luffy has been holding himself back all this time. Gear 5 has been a ...