The Widow comes to the dying and sucks their souls out, or something along those lines. But does she merely sense their death and come to usher their souls on to the afterlife, or does she cause it?
On the one hand, she certainly confronts Morgana in order to try to stop her from interfering, which definitely does not seem like the position of a neutral entity, not to mention her plotting with Merlin. Morgana certainly acts as if the Widow needs to be stopped, and the Widow basically tries to strangle her, which is not really in line with her not killing people. On the other hand, when Nimue's name shows up on her hit list, she visits Merlin and expresses her profound regret, suggesting that Nimue's fate is inevitable, and implying that she is not the one who will cause it. Further, when
becomes the new Widow, she says that she can sense people who are dying, including the person whom the Widow came for, further suggesting that the Widow just comes to people who are dying naturally.
What is the true nature of the Widow's visitations?