Luffy explained the mechanics of the technique shortly after using it. By blowing an incredible amount of air into his bones (hence the technique's full name: Gomu Gomu no Giganto ), he inflates his limbs to the size of a giant's. This allows his attacks to possess the destructive power of a giant's club.
With Gear 3, Luffy was able to take on stronger opponents and overcome more challenging battles. This technique also played a crucial role in several key story arcs, including the Marineford Arc and the Dressrosa Arc. when did luffy get gear 3
In this battle, Luffy shrinks down to a chibi-like form (the infamous "Chibi Luffy" side effect) after using the technique. But the attack itself is devastating—literally reshaping the architecture of Enies Lobby. Luffy explained the mechanics of the technique shortly
The use of Gear 3 marked a significant turning point in the battle, as Luffy was able to gain the upper hand against Lucci. This technique also showcased Luffy's creativity and resourcefulness in combat, as he was able to adapt and develop new strategies on the fly. With Gear 3, Luffy was able to take
However, Luffy realized that he needed a new technique to overcome the strength and speed of Rob Lucci. With the help of his brother, Portgas D. Ace, and by observing the stretching abilities of a rubber band, Luffy was able to develop Gear 3.