Eyes of the Grave Lord

You gain Darkvision (you can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can´t discern color in darkness, only shades of spectral blue).

You also gain the ability to occasionally sense the presence of the undead, whose existence is an insult to the natural cycle of life. As an action, you can open your awareness to magically detect undead. Until the end of your next turn, you know the location of any undead within 60 feet of you that isn’t behind total cover and that isn’t protected from divination magic. This sense doesn’t tell you anything about a creature’s capabilities or identity.

You can use this feature a number of times equal to your proficiency modifier. You regain all expended uses when you finish a long rest.