Four or higher...

Throwing her weight to the side, Nami at last managed to break free from the grip of the men behind her — Just in time to avoid the Noro Noro Beam and have the two oafs reaching for her in frozen time.

"OH! NAMI HAS MANAGED TO ESCAPE THE CLONES OF OUR BOSS SOMEHOW!"

She didn't wait for the Boss to process what he had just done to his own men. She swung her staff into their jaws, their groins, their noses and legs. Then, swinging forth a stream of black clouds she rammed lightning down all three of their throats.

"LION ROD!"

Thirty seconds passed, and the two clones flew off the ship like rockets. Only Foxy remained, battered and charred on the deck of his ship.

"M-Mercy!" he coughed.

Nami cracked her knuckles. "Just what did you think you were going to do just now?"

Screams of the pirate captain filled the air, and with that Nami had won a merciless victory.