Amagai Vs. Ichigo - (dub) 188 : Duel!

Ichigo gains the upper hand by using his Hollowfication . Because the Bakkōtō is designed specifically to seal Shinigami powers, it cannot negate Ichigo’s Hollow energy, allowing him to fight at full strength with his mask on.

Exhausted and heavily injured, Amagai begins feeding even more of his power into the Bakkōtō. The battle ends with a powerful point-blank Getsuga Tenshō from Ichigo that severely damages Amagai. Trivia & Interesting Notes (Dub) 188 : Duel! Amagai vs. Ichigo

The episode delves into Amagai's motive: avenging his father, Shin'etsu Kisaragi , whom he believes was murdered by Head Captain Yamamoto. Ichigo gains the upper hand by using his Hollowfication