Incarnation.Shirou and Rin plan to breach Ryuudou Temple and rescue Shinji while Saber fights Gilgamesh and destroys the Holy Grail. Saber reveals that she can only use her Noble Phantasm Excalibur once before fading, since Rin cannot supply Saber with enough mana due to sharing it with Shirou. At Ryuudou Temple, Shirou and Rin observe Shinji's mutated form and a torrent of black ooze pouring out from the Holy Grail, pooling around Shinji and forming a lake. They are then confronted by Gilgamesh, who elaborates on his intentions and explains that there are too many people in the modern era without significance or purpose. At the main gate, Saber instead comes across Assassin, who is still guarding the temple despite Caster's death, as it is his anchor to the world. He reveals that he is not actually the fictitious Sasaki Kojirō, but a nameless swordsman similar to him, then expresses a desire to finish his duel with Saber before he fades. As Shirou duels Gilgamesh, the Holy Grail is bombarded by what Gilgamesh claims to be mankind's malevolent wishes. Rin approaches the mass of flesh and manages to remove Shinji from it, causing it to try and use Gilgamesh as a replacement vessel. However, Gilgamesh defends himself with his most powerful Noble Phantasm, a sword called Ea. Meanwhile, Assassin reveals to Saber that he is already starting to fade and uses his Swallow Reversal. Saber reveals Excalibur's blade, dodges his strike and fatally wounds him.