"The Plagued Knight"
The words that the Lancer spoke echoed within the wretched knight's helmet, causing a loud laughter to burst from him. "A duel between you and I?! You, the most magnificent, the most powerful Servant here?! Hah, don't make me laugh girl, you and all others pale in comparison to them, for it is they who are the strongest Servant of them all!" As he spoke, the air around them grew foul with wretched diseases as fungus and other various dwellings began to grow upon the walls. Continuing his mad laugh... he grinned widely, before staring at Lancer with his piercing Green-eyes.
Finally... a worthy opponent. They wouldn't mind if I revealed myself and had a little fun now... would they...?
"I'm here for fun, and to test those who dare to enter the Holy Grail War... consider me a trial for you to overcome and test your mettle, woman," barked the knight as he took a large step forward and brought his sword down onto the ground to his side, causing the tip of it to drip acid onto the floor. "I don't care for such formalities... but, I want fun... and if by revealing myself will net me that fun, then I will gladly do so... You don't even have to tell me your name, for it wont matter. For you see, I am [______________________________]! Prepare yourself, wretched mortal, for the end is nigh!"
With those simple words, the Plagued Knight charged straight at Lancer with his mighty weapon held up high, more than ready to overpower her with his immense strength and size to boot.
The first true battle of the Holy Grail, had begun.
"Syndra"
Syndra just stared with a small smile at her silly Servant, before giggling like a child. "It would seem I have summoned quite the peculiar Servant... and a strange one at that," she hummed as she placed her hands behind her back and twirled a bit. "Well, like I said, I'm not big on becoming a protagonist... nor am I too sure if I'm cut out to actually killing people, but I wont let people simply push me around and steal my life without some fighting... um, speaking of which, Caster, what can you do?"
She then pointed towards the books that were taken from her just moments ago. "Do those have anything to do with your powers, by any chance? They sure did seem very important and powerful... unless you were exaggerating like all authors normally do when they write. I'd like to get to know you in and out as best as I can, to be honest before we make any serious plans."