Katakuri: "Let's see if you're worthy of being my rival, Luffy." Luffy: "Bring it on, Katakuri! I've been waiting for this." Round 1: Katakuri and Luffy both charge at each other, fists raised. Katakuri manages to land a solid punch on Luffy's arm, but Luffy dodges the follow-up attack and responds with a kick to Katakuri's midsection. Winner: Luffy Luffy's agility allowed him to dodge Katakuri's attack, and his strength allowed him to land a powerful counterstrike. Round 2: Katakuri transforms his body into mochi and extends his arm, attempting to grab Luffy. However, Luffy manages to stretch his own arm and grab onto Katakuri's, pulling himself forward and delivering a punch to Katakuri's face. Winner: Luffy Reason: Luffy's ability to stretch his body put him at an advantage in this exchange, allowing him to strike Katakuri from a distance. Round 3: Katakuri launches a barrage of mochi fists at Luffy, which he manages to dodge, but Katakuri also manages to land a few solid blows. Luffy counters by activating Gear 5, turning the ground beneath them into rubber and launching himself at Katakuri with incredible speed. Winner: Luffy Reason: Katakuri's attacks were powerful, but Luffy's new Gear 5 ability gave him an incredible speed boost, allowing him to land a devastating blow. Round 4: Katakuri transforms his entire body into mochi to avoid further damage from Luffy's attacks. However, Luffy manages to turn the trees surrounding them into rubber and bounces off them, coming at Katakuri from an unexpected angle and landing a final punch, knocking Katakuri out cold. Winner: Luffy Reason: Luffy's ability to turn the environment into rubber was the deciding factor in this round, allowing him to outmaneuver Katakuri and land a finishing blow. Final Result: Winner: Luffy Reason: Luffy's combination of strength, speed, and rubber abilities proved too much for Katakuri to handle, despite his own impressive fighting skills and ability to turn his body into mochi.