Bleach and Fate/Stay Night Challenge

The Vasto of White by Parcasious is one of my favorite stories. It is a crossover where after Shirou Emiya's death, his soul gets rerouted to the Bleach universe and becomes a Hollow, later an Arrancar. He eventually defeats Baraggan and becomes the king of Hueco Mundo thanks to retaining his ability to copy weapons with Unlimited Blade Works (since Noble Phantasms are crystallized legends, they become stronger with age, so Baraggan's rapid aging powers only make them stronger instead of destroying them) on top of his Hollow abilities. Though his memories are fragmented, he only wants to save and protect people. He also retains his chick magnetism and soon gets a harem of girls including Tier Harribel and her followers. However, his unique powers soon draw the attention of Aizen's group, the Soul Society, and the Wandenreich.

What I really like about this story is that Shirou can copy any Zanpakuto that he sees and he can materialize their spirits into the real world. His Noble Phantasms also gain spirits like Zanpakuto which usually look like their original wielders. The author also removed his limitation of being unable to copy divine weapons, meaning he has more to his arsenal. However, what I don't like is that so far, none of his Noble Phantasms have release commands or Bankais.

The challenge is: Write a similar story where Shirou somehow goes to the Bleach universe. He can either be sent there somehow, maybe by Rin and/or Zelretch, or he could reincarnate there like in The Vasto of White. He could be a Hollow, Shinigami, Quincy, or Fullbringer, as long as he still has Unlimited Blade Works. The point is that the Bleach universe causes his Noble Phantasms to gain Zanpakuto Spirits. Or it could be other Fate characters sent to the Bleach universe and their Noble Phantasms turn into Zanpakuto and gain a spirit. Here's how I would do it:

Excalibur and Avalon: They have the same spirit who looks like Saber Arturia Pendragon. Excalibur's release command is "Promise Victory" and Avalon's release command is "Go to the Utopia". Excalibur's Bankai is Excalibur Morgan and turns her into Saber Alter. Avalon's Bankai is the Garden of Avalon and gives her the white dress Saber wears in Avalon. For balance purposes, both Bankais can't be used at the same time.

Rhongomyniad: Her spirit looks like Lancer Arturia Pendragon. Her release command is "Shine to the End of the World". Her Bankai is Rhongomyniad Morgan and turns her into Lancer Alter.

Caliburn: Her spirit looks like Saber Lily. Her release command is "Select". Her Bankai would either be Chastiefol or Marmyadose and turn her into Caster Arturia.

Arondight: His spirit looks like Berserker Lancelot. His release command is "Be an Unfading Light". His Bankai is Arondight Overload and turns him into Saber Lancelot. Either that or his Bankai is Innocence Arondight and turns him into Fairy Knight Lancelot.

Galatine: His spirit looks like Sir Gawain. His release command is "Radiate". Maybe his Bankai would be Black Dog Galatine and turn him into Fairy Knight Gawain.

Failnaught: His spirit looks like Sir Tristan. His release command is "Never Miss". Maybe his Bankai would be Fetch Failnaught and turn him into Fairy Knight Tristan.

Lord Camelot: Her spirit looks like Mash Kyrielight (not Galahad because that guy is a total jerk). Her release command is "Guard the Castle". I can't think of a Bankai.

Kanshou and Bakuya: Their spirits look like the blacksmith Gān Jiàng and his wife Mò Yé. Their release command is "Come Together". I'm not sure on a Bankai, maybe the guns that EMIYA Alter uses.

Rho Aias: His spirit looks like Aias the Great. His release command is "Guard Sevenfold". I can't think of a Bankai.

Hrunting: His spirit looks like Beowulf. His release command is "Seek the Blood". I can't think of a Bankai.

Caladbolg: His spirit looks like Fergus. His release command is "Crush the Hills". I can't think of a Bankai.

Durandal: His spirit looks like either Roland or Mandricardo. His release command is "Remain Peerless". His Bankai is Durindana and turns him into Hektor.

Gae Bolg: His spirit looks like Cu Chulainn. His release command is "Pierce the Heart". His Bankai is Curruid Coinchenn and turns him into Cu Alter.

Gae Dearg and Gae Buidhe: They have the same spirit that looks like Lancer Diarmuid Ua Duibhne. Gae Dearg's release command is "Dispel" and Gae Buidhe's release command is "Wound". Their Bankais are Moralltach and Beagaltach and turn him into Saber Diarmuid.

Aestus Estus: Her spirit looks like Nero Claudius. Her release command is "Burn with the Original Flame". Her Bankai is Aestus Domus Aurea and gives her her Third Ascension outfit.

Rule Breaker: Her spirit looks like Medea. Her release command is "Sever". I can't think of a Bankai.

Of course, these are just my ideas, and there are many more Noble Phantasms out there. You all can do your own spin on it.