Fate/stay night: Unlimited Blade Works 2nd Season

The Dark Sword Bares Its Fangs

Shirō and Rin confront Caster and Kuzuki, who engage them in battle. Meanwhile, Lancer overwhelms Archer with his attacks, after which Archer mocks his sense of loyalty and honor, thus infuriating him. As a result, Lancer tries to use his powerful Noble Phantasm to strike him down, but Archer is barely able to counter it with a magical barrier, which expends most of his strength in the process and destroys the church. After praising Lancer's power, Archer reveals he staged his betrayal of Rin so he could take advantage of Caster when she had her guard down, prompting Lancer to leave. Back at the church, Shirō and Rin are both overwhelmed by their opponents, but Archer suddenly appears and ambushes Kuzuki, firing several swords at his direction. Caster shields Kuzuki from the swords and is impaled herself. As she dies, she confesses to Kuzuki that her wish was already granted. Kuzuki then tries to fight Archer, explaining that since he had helped in disrupting the usual proceedings of the Holy Grail War, he had to finish what he started. He is then stabbed by Archer and crushed by a collapsing pillar. As Shirō attends to the captive Saber, Archer suddenly traps Rin inside a cage of swords and declares his intention, as a "Guardian", to kill Shirō.