Episode 17! They're really stepping up the plot!
Oh man! Caster and her Master Kuzuki (who's that freaky teacher back in episode 1) is one duo not to be reckoned with! Based on the info Ilya told Shirou, Rin, and Saber about Caster and her Master, they tried to ambushed Kuzuki at the middle of the night.
It seriously didn't go too well.
When Rin shot her magic at Kuzuki, Caster was able to block it off. After that, he told her to cast a spell on his fists so he can counterattack. And MAN, Kuzuki single-handedly defeated Saber; Saber seriously had no chance. Rin was about to cast a stronger spell, but Kuzuki was too fast and knocked out Rin in one blow. Now it's up to Shirou to find a way to defeat them. He then used his Trace magic to form the same two swords Archer was using. He did a great job defending against Kuzuki, but later on Shirou dropped his weapons because he was starting to bleed.
Caster then told them to stop fighting, and they should team up with them because she found a way to force the Holy Grail out. She said it involves using a strong magician. Once she and Kuzuki disappeared, Shirou and the others thought they're going after Ilya. Back at Shirou's place, Saber found Sakura in the ground. When she's about to pick her up, Sakura unexpectely stabbed Saber with a crooked glowing dagger. Caster was then revealed as she starting talking though Sakura. Caster said this was her Nobel Phantasm in which the dagger nullifies all of Saber's usage of her sword. She then says that she'll use Sakura as a sacrifice to bring out the Holy Grail.
And now Caster's True Name has been revealed!!!
It is Medea!!!
Awesome episode! This is the point where the anime will go to its seperate ways from the original PC game. They might even blend some of the events from the 3 paths; who knows what will happen!