Van Helsing Season 5, Episode 3, Lumina Intunecata.
You’d think that after languishing in the Dark Realm for who knows how many years, Dracula would need at least a few hours to get reacquainted with the human body before jumping back into perpetrating unholy acts. Not so. She gets right to work preparing for the vampire hunters’ imminent arrival.
Out in the forest, those vampire hunters are taking a beat to go over war plans. Jack insists that defeating Dracula is going to require every weapon in their arsenal including the use of Bathory’s mother’s scrolls. On these scrolls are incantations authored by the first person ever to summon The Dark One, making them the nuclear bomb of human-vampire negotiations.