She doesn't trigger the hex again, and that's all the opening he needs. He knows he needs to act now, or he won't get another dodge in, the rotting wound in his side and the spell wearing off will all slow him to a fatal end.

"Goemon! Now!" He raises his blade, but it's just a distraction, a last-ditch means to defend himself if this fails. His mask melts away in blue flame once more and Goemon appears, casting a Bufudyne spell on their foe, sending a huge tree-like pattern of ice shooting out of the water and shattering painfully into its target with the force of knives or cold shards of glass. Starting with her feet and the water around her, the ice freezes, too, aiming to immobilise her just out of reach.