Hi, everyone! Happy holidays! So I'm responding to a challenge issued by Nerf585: FateStay Night X Tales Of Berseria Crossover Challenge. This is my first challenge so be kind on comments please. Anyways the information for the challenge is on by the previously named title. Basically post-UBW route Archer is brought by the Holy Grail to the Tales of Berseria world inside Titania Prison, where he escapes with Velvet. Just to let you know, I plan on using the Ufotable Adaptations of both animes, though for Tales of Berseria, after the first two episodes I'm going to base it off the games and manga. I do hope you enjoy.

Now here are the power ups the challenge conditions gives Archer. The Holy Grail has given him an unlimited prana amount, and an ability to create EX ranked Noble Phantasms and divine constructs.

Chapter 1: End of the Grail War

The Archer Servant of the 5th Holy Grail War, Heroic Spirit EMIYA, slowly limped to Ryuudou Temple, where the final battle was. Despite him taking massive injuries from the Archer Gilgamesh, Archer's Independent Action along with a minor healing factor managed to keep him alive. Using concealment Noble Phantasms, Archer slowly made his way towards the forest, hiding there until he was truly needed. He snuck past Saber Artoria Pendragon in a fierce duel between Assassin Kojirou Sasaki, past Rin Tohsaka trudging through the mud of the corrupt Holy Grail, and even snuck past the battle between his past self Shirou Emiya and the "great" King of Heroes.

Archer slowly climbed the tree, getting a scope of the area. He saw that the King of Knights had defeated the Assassin Servant and was being forced by her master, Rin, to destroy the Holy Grail, even if the latter was trapped inside it by Angra Mainyu, the being which has corrupted the Holy Grail. Archer smiled, remembering his former master's foolishness and even predicted her very thoughts.

"I'm sorry, Saber," Rin would say, sadly. "I knew that you would never obey. Not willingly. And you," she would say, looking at the foolish, unconscious Shinji Matou, "I'm sorry Shinji. Sorry I couldn't save you. Please forgive me."

Archer scoffed. "I refuse to listen to such pathetic whining."

He aimed his bow and released a hail of crimson, pulsing arrows. The arrows annihilated the cursed muck spewing out of the grail, creating a path for Rin. He saw Rin looking around amazed.

"Now go, Rin!" he ordered.

Archer watched Rin struggle to bring Shinji and her to safety. Once in a safe distance, she shouted, "Saber! I'm entrusting you with the last of my prana! Use it to blast that damn Holy Grail! Hit it as hard as you can, SO THERE'S NOTHING LEFT!" Raising her right hand, her command spells released a light which enveloped Saber. Exhausted, Rin could only collapse, watching as Saber gathered prana into her sword.

"Ex-" Saber chanted.

The Holy Grail's body attempts to consume her.

"-CALIBUR!" Saber yells, firing off a wave of holy light which consumed the grail. Like some sort of holy fire, the light spread, reaching upwards and striking the hole that was the true Holy Grail. Archer looked amazed as an explosion caused by the most beautiful sword lit up the night sky. Archer turned, smiling as he walked off to help the next fool. Arriving at Ryuudou Temple, he patiently waited. It wasn't long until Shirou Emiya and Gilgamesh reappeared, both weak from the battle inside the reality marble.

"Running out of prana is such a pathetic end," the King stated, his arm chopped off and nearly cut in half. "Victory is yours, but it won't save your life, faker." He said the last word with discontent as he summoned a portal from his Noble Phantasm, the Gate of Babylon. Aiming a sword at Shirou's head, he didn't notice as a hole opened up beneath his missing right arm. The hole expanded, beginning to swallow the king.

"What are you doing?" Gilgamesh demanded. "How dare you drag me in, you wretch!?

"The hole of the Grail…" Shirou exclaimed, shock.

As Gilgamesh was swallowed whole, a chain spewed forth, tying around Shirou's arm. Archer's younger self looked at defiantly, saying that he'd rather cut off his arm then let Gilgamesh escape his doom.

Again, Archer scoffs. "Go ahead and cut your arm. But first take a step to the right."

Archer released his final arrow, which missed his younger self's head and hit directly between Gilgamesh's eyes.

"Archer!?" Gilgamesh exclaimed as he was hit. "Damn… you…"

With Gilgamesh consumed, the chain fell off Shirou's arm and was pulled into the hole. Archer continued to smile as he trudged along, wanting to see the sunset one last time as he died. Archer watched as the sunset lit up the surrounding forests, creating a beautiful scene.

"Archer!" Rin yelled, coming from behind him. "Archer…"

"It's a shame really," Archer said, "but it is what it is. Give up on the Grail, Rin, at least this time."

He looked at her heartbroken face and chuckled.

"Wha- What's with that?" Rin stammered, her tsundere qualities flaring up. "Are you laughing at me right now? What's so funny?"

"Yeah, sorry about that. You just looked so pathetic I couldn't help myself. I was thinking how the two of us make one sorry looking pair."

Rin became quiet. "Archer, I want you to pact with me again, okay."

It was Archer's turn to be quiet. "I'm afraid I can't. I doubt it would be allowed. And besides, I no longer have a goal. Like it or not, my battle ends here."

"But… But that means… That no matter how much time passes, you won't…" Rin winces, unable to bring herself to even picture her friend in such a position.

Archer looked at Rin, the girl whose alternate self was his best friend, teacher, and lover. He stared at her with a shocked face, then spoke again. "That was unexpected. Rin!"

Rin looked up at Archer, his hair falling from its usual way to resemble his past self.

"Keep an eye on me," he said, sincerely. "I'm helpless, but you already know that. So just, be there for me."

"Archer," Rin said, tears in her eyes. Wiping away her tears, she smiled sadly. "I get it. I promise I'll try. I'll do my best to make sure he doesn't turn into a jerk like you. And I promise I'll do all I can to make sure he likes himself. You do the same, okay?"

Archer smiled. "That's good enough for me," he closed his eyes content before looking at Rin again.

"Don't worry, Tohsaka," he promised, giving Rin an honest smile. "I'll be fine. I swear. I'll try my hardest from now on."

And then Archer faded completely, disappearing from this world. Content, he let his existence disappear from this world.

"I dOn'T tHiNk So, ArChEr."

Archer opened his eyes to see remnants of the grail desperately trying to grab at him. Archer desperately swatted the grail away, using his trump card.

"Avalon!" he shouted, causing both him and the grail to tumble. Archer slowly loss consciousness.

Archer woke to find himself in a dark cell.

"Where… am I?" he said, realizing something strange. "I have a body. And the grail…. Is it… inside me?"

Archer walked towards the exit to his cell, finding a barrier in place.

"What's a barrier doing here?" Archer questioned, easily breaking through.

The Servant walked out of the cell, only to bump into a woman with fiery red hair. Wearing a white butterfly themed dressed and wore a mask, she stared at him, curiously.

"Ugh," she groaned. "Who are you? A prisoner?"

Archer narrowed his eyes. "Sounds to me, that's none of your business."

The redhead was silent. "Fine, you are a prisoner. You could be useful. Come with me."

She grabbed Archer's hand, pulling him with her.

"Where are you taking me," Archer demanded, slightly surprised at how strong she was. Nothing on a Servant but above humans.

"To free a certain prisoner," the girl said. "One that will save the world."

"Okay," Archer said, still not fully understanding his situation. "Who are you, and who's this prisoner."

"I am Seres," the girl said. "And the prisoner's name is Velvet. Velvet Crowe."

And there. I'm done. Hope you guys enjoy. Here's something extra:

Taiga's Dojo/Magiou's Midnight Monologue!

Taiga: Hey, everyone! Welcome to Tiger Dojo! Nice to meet you. The instructor will be me, the Tiger of Fuyuki!

(Applause)

Taiga: Here is our cast: she's everyone's cutest lolli, Student #01!

(Illya appears, dressed in gym clothes and the audience applause)

Student #01: That's Illyasviel von Einzbern, but I suppose Student #01 works.

Taiga: she's quirky and a powerful witch! Please welcome the marvelous, Miss Magilou!

(Magilou appears and the audience applause)

Magilou: Thank you, thank you. You're too kind. But why didn't that stupid author put me in the story

Illya (deadpan): Because it's already longer than most of his regular chapters.

Magilou: Shut it, eternal lolli!

Taiga (ignoring the fighting duo): huh, I feel like we're forgetting something.

?: Bi-en! You forgot me!

(A little black creature in a large hat appears)

Taiga: That's right. We forgot you, uh… Who are you?

Magilou (holding a clawing Illya back with her foot): oh, that's Bienfu. He'll be in the story later.

Bienfu: That's right! And I have a lot of poetry to show to the audience. Here's the first one: Ehem… "Lif-"

Taiga: Oops. We're out of time. Goodbye reading!

Bienfu: Bi-en! So short!

Magilou: I agree. I didn't even get to display my- Aahhh!

(Illya managed to get past Magilou's foot and chewed on her head.)

Magilou: Get off! You're worse than a daemon!

Taiga: Anyways, please follow/favorite us. Next time – Escape Prison Titania!

Illya (removing her mouth from Magilou's head): Look forward to it!

Magilou: Get OFF!

(She throws the girl off into Bienfu.)

Illya and Bienfu: BI-EN!

Ta-da! Hope you like it! Please comment!