Although Robert's Oxygen-Oxygen Fruit fell short of the Three Admirals' Devil Fruits in the original story when it came to destructive power and explosive force.
In a prolonged battle, however, the Oxygen-Oxygen Fruit was an effective counter to anyone without a special fruit ability.
If there had not been so many people, such a vast battlefield, and such a fast pace of combat, with poor control risking friendly casualties, Robert alone could have cut the enemy's fighting strength in half.
Still, while he could not handle too many people at once, dealing with his own opponent was easy enough.
At first, Naren felt nothing unusual from Robert's fruit ability, but as his fight with Robert and Brook dragged on.
He soon realized something was wrong. Someone on the other side could control oxygen!
His expression changed drastically at the realization, and he tried to escape the battlefield. If he kept fighting those two like this, he would undoubtedly share Nani's fate.
But Robert gave Naren no chance. He and Brook kept Naren surrounded, preventing him from getting more than fifty meters away from Robert-the current limit of Robert's precise control over the Oxygen-Oxygen Fruit.
Naren had no answer to Robert's shameless tactics. Even a top-tier Admiral-level fighter like him could not go an hour without breathing.
In fact, just a few minutes without breathing would make his strength plummet. After fighting for some time, Nani had already lost even the ability to mount a desperate counterattack.
He could only let himself be slaughtered, waiting hopelessly for death.
In that respect, Robert's Oxygen-Oxygen Fruit was practically a cheat. Among Saint Yasushuro and the others, there were no other Logia Devil Fruit users or unusual life-forms like Brook.
They had no way to deal with Robert, and they had failed to eliminate