Yylfordt Granz

is the 15th Arrancar in Sōsuke Aizen's army, as well as a member of Grimmjow Jeagerjaques's Fraccion. His name, though its English equivalent was never revealed, is also commonly romanized as Ilforte Granz.

Character Outline
Yylfordt is a sarcastic, effeminate Arrancar with long blond hair. What remains of his Hollow mask is on the top of his head, and looks like a broken helmet. He commonly refers to other characters as "brother" when speaking. He was the older brother of Szayel Aporro Granz, the 8th Espada. Yylfordt is fairly powerful for his rank, able to fight off Renji Abarai's bankai (at 20% power) without releasing his zanpakutō. In contrast, however, he is little match for the surprisingly strong Ururu Tsumugiya in his normal state, but easily dispatches her once he releases his zanpakutō.

History
Yylfordt Granz was part of a group of Hollows formarly led by Shawlong Qufang, that wander Hueco Mundo looking for a way to continue their evolution into Vasto Lorde. One day the group came accross an Adjuchas by the name Grimmjow, after seeing hs power Yylfordt and the rest of his group pledged alligance to him stating that he would become their king. After some time had pass Yylfordt as well as the rest of his group noticed that they were not advancing in their evolution and asked Grimmjow to eat a piece of them so he could grow stronger and they would not regress back to Gillian.

Synopsis
When Grimmjow led the second invasion on the human world, Yylfordt along with Shawlong Qufang, Edorad Leones, Nakim, and D-Roy were part of his group. When the group dispatched to search for opponents, Yylfordt headed toward the Urahara Shop and met in combat with Renji Abarai. During the fight he was clearly overpowering Renji's Bankai, until the former gain some assistance. In the anime he was assisted by Ririn Noba and Kurōdo. Using their skills they were able to buy Renji sometime. After disposing of the three Modified Souls He was attacked by Ururu Tsumugiya who took control of the battle on drove him to release his Zanpakutō. With his power released his gored Ururu and took a direct hit from Jinta Hanakari's bat with no effort. Renji proceded to intervine and saved both the children. While getting ready to give the final attack, Renji releases his limiter and uses the element of surprise to finish off Yylfordt. Renji then admits that had he been fighting at full power from the beginning he would not have won.

Zanpakutō
Yylfordt's zanpakutō is named and is released by the phrase. When Del Toro is released, Yylfordt's upper body enlarges and is covered in bull-like armor, while his mask seems to completely regenerate, giving him horns. In this form, he walks on four legs and uses his horns to skewer opponents.