In the Arena of Life and Death, Vincent used countless fire threads to create a huge and dense net. Dexter had no choice but to continuously split into smaller water droplets, shuttling through the fire net to dodge.
However, Vincent who was in the air kept splitting the flames in his hands into layers of fire nets. He stacked the nets and kept repairing the hole in the nets until they completely disappeared.
After seeing his opportunity to escape gradually being sealed off, Dexter had no choice but to retreat to the center of the arena. He gathered all the water droplets and returned to his original human-like figure. However, he became much shorter as compared to when he first entered the arena.