Darth Vader walked out of his master's residence, not wanting to hear the young woman talk to Shiro Emiya about the Holy Grail War. He already knew about that and was not in the mood to be reminded again of it. He sensed Archer on the roof, keeping guard as he moved away, letting his instincts carry him off. Very few knew what he was, even Tohsaka's servant was clueless to his identity. The Grail had certainly done it's hardest to hide his identity from the rest of the servants well.

Of course, being the Grand Saber Servant, that meant that Vader outclassed the regular Saber class servants greatly. Servants near him shuddered in fear, their body's instantly taking a fight or flight response. His master, however, had been able to summon him without a catalyst, much to his surprise. Vader wasn't expecting that to happen, maybe having a master that used a catalyst, yes, but summoned through a near death wish?

Coming to a stop near a path that lead to a church, Vader felt himself being watched, his hand going to his weapon on his belt. The lightsaber was activated inches from a golden haired man, who looked bemused at the crimson blade that hovered inches from decapitating him. Vader could feel the aura from the boy, one of power and kings. That only made his fist tighten around the handle.

"It seems that I've stumbled upon a servant, a foolish one at that." The man said, looking at the blade before turning his gaze on Vader.

"Like yourself?" Vader remarked coldly, his breathing filling the silence ominously.

The boy looked quite unamused at the comment, his gaze turning into a glare. Vader wasn't scared of it in the slightest, he had faced worse than people with insulted ego's.

"How dare you mock your king?!" The man growled, his eyes glowing slightly with power.

"I don't know you, nor do I care to find out. You are a servant, an Archer class servant at best, facing someone who makes anyone fear the name of the Dark Lord." Vader hissed through his vocoder, the blade getting closer to the boy's neck.

"You are nothing more than a mongrel, an insect I can easily crush beneath my boot." The boy snapped and Vader found himself forced to defend himself from golden weapons that came out of golden portals in the air.

The crimson blade cut through the oncoming projectiles with ease, each cut into pieces that fell at Vader's feet as he moved forward. The young man frowned and kept on summoning more and more projectiles, the items becoming weapons of war now, swords and spears mostly, with the occasional dagger thrown in for good measure. Vader simply kept moving forward, cutting down the oncoming weapons or using the force to knock them off course into the dirt. The closer he got to the boy, the more the boy threw at him.

"How are you still not dead, you filth?!" He barked, eyes full of anger.

Vader remained silent, not even heeding the words as his blade cut a bloody trail through the air before it found itself in the shoulder of the man. Eyes wide in shock, the man looked at Vader for the first time in fear, not fear of his wounds but Vader himself. The lightsaber was swiftly removed before a heavy armored boot kicked Vader's opponent into the ground with a loud crunching noise. The Dark Lord of the Sith looked at the golden haired boy, who was holding his heavily broken nose in one hand, blood streaming down his face.

Deactivating the lightsaber, Vader turned to walk away only to dodge to the side of a dagger that had been sent at his back. He turned and his anger boiled, his gloved fist curling into a familiar claw like gesture. The boy was hoisted up into the air, his fingers clutching at something that was around his throat, choking the air out of his lungs as he looked like a fish out of water.

"How.." He gasped out, his face turning red from the effort to speak, "Dare...you...attack...your...king! I..am..Gilgamesh...and...you...will...kneel...before...mongrel!"

Vader marched closer until his fist was closed around Gilgamesh's throat, his gloved fingers closing ever so slowly around the servant's neck. Looking directly into Gilgamesh's eyes, Vader saw utter fear and panic fill the Archer servants' gaze, causing him to smirk behind his mask. Just before the golden haired servant could pass out from lack of oxygen, Vader tossed Gilgamesh's body into the church's courtyard, watching it crash then roll to a stop near a gravestone marker.

"Be careful not to choke on your own ego, Gilgamesh." Vader intoned sourly, turning his back to the fallen and defeated servant, marching back towards his master's place of residence, cloak billowing in a non existent wind as he left the church yard.

By the time Vader had returned, Shiro and Rin were just finishing up talking. Archer looked at him with some hidden emotion but Vader ignored him, simply entering the building and that made both of the young people look up. His master looked conflicted, but clearly determined about something. Rin looked frustrated and calmer at the same time, Vader had to admit it looked cute on her.

"Where have you been?" Rin spoke up, clearly miffed at his clear unwillingness to even be in the same room as they spoke. "As far as I know, only the Archer class has the Independent Action, not Saber class."

Vader snorted "As I'm not a standard Saber Servant, I don't follow the laid in stone rules that regular Servants have to follow."

Rin glowered, eyes narrowing "And what is that suppose to mean?"

Shiro looked at him, wanting to know as well. Vader let out a long suffering sigh before answering.

"I am the Grand Saber Class Servant Darth Vader, one of the most powerful Grand Class Servants known to the Throne of Heroes and the Holy Grail Wars. I am the Servant of Shiro Emiya and will continue to be his servant until we are both utterly destroyed or this Holy Grail War is won." Vader spoke coldly, his voice carrying all the way up to the roof so Archer could hear him.