As a bonus action, you can magically teleport up to 30 feet to an unoccupied space you can see. You can use this trait a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest. Starting at 3rd level, you also gain resistance to all damage when you teleport using this trait. The resistance lasts until the start of your next turn. During that time, you appear ghostly and translucent.
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 discern colors in that darkness only as shades of gray.
You have advantage on saving throws you make to avoid or end the charmed condition on yourself.
You have resistance to necrotic damage.
You do not need to sleep, and magic cannot put you to sleep. You can finish a long rest in 4 hours if you spend those hours in a trancelike meditation, during which you retain consciousness.
Starting at 1st level, you gain the ability to place a baleful curse on someone. As a bonus action, choose one creature you can see within 30 feet of you. The target is cursed for 1 minute. The curse ends early if the target dies, you die, or you are incapacitated. Until the curse ends, you gain the following benefits: You gain a bonus to damage rolls against the cursed target. The bonus equals your proficiency bonus. Any attack roll you make against the cursed target is a critical hit on a roll of 19 or 20 on the d20. If the cursed target dies, you regain hit points equal to your warlock level + your Charisma modifier (minimum of 1 hit point). You can't use this feature again until you finish a short or long rest.