Unfortunately, this fight is the result of choosing option 2 ("I'll never understand Quetzalcoatl.") . I found out about this being the easier fight only after finishing it. But it was quite challenging nevertheless.
OST:
"Bleach OST 3-Escalon" - https://www.youtube.com/watch?v=_G1EJ716AlQ
"Bleach OST 3-Clavar La Espada" - https://www.youtube.com/watch?v=suwfJMiXauU