Hassan attacks Tiamat, forcibly introducing the concept of death to her and making her vulnerable. However, as Ritsuka and his Servants attack Tiamat, she summons high class Lahmu to defend herself as she climbs her way out of the Underworld. Ritsuka and his Servants are quickly outmatched by the power of the new Lahmu until Gilgamesh arrives in his Servant form. Gilgamesh is able to suppress the Lahmu and force Tiamat back down into the Underworld. In response, Tiamat creates a “Nega-Genesis” field in order to restart the universe. Ereshkigal sacrifices herself by using up all of her power to temporarily suppress Tiamat while Mash and Merlin use their respective Noble Phantasms, Lord Camelot and Garden of Avalon, to open a path for Ritsuka to attack Tiamat’s head directly. Following a conversation with Tiamat’s subconcious and confirming Tiamat does not want to harm her children despite their abandonment Ritsuka is able to convince Tiamat that humanity does still love her and thanks her as she cancels her Nega-Genesis field, allowing Gilgamesh to completely obliterate her physical form with his ultimate weapon, Enuma Elish. As the Underworld begins to collapse, Merlin uses his magic to send an unconscious Ritsuka and Mash back to the surface.