In Gear 5, Luffy seamlessly integrates all three types of Haki (Observation, Armament, and Conqueror's Haki) with his rubber abilities. This integration would make his attacks extremely potent, allowing him to predict enemy movements with advanced Observation Haki, harden his rubber body to an unprecedented level with Armament Haki, and unleash devastating Conqueror's Haki blasts that can incapacitate foes instantly. --niji 6