While most failed transformations result in the death of the spellcaster, on the rare occasion in which the required rituals were performed correctly but the participant was unable to contain the negative energies occurs, a deathlock wight is the result. Deathlock wights are the result of a lich's transformation gone wrong.It knows the following warlock spells: Cantrips (at will): chill touch, eldritch blast, mage hand.
It regains its expended spell slots when it finishes a short or long rest. Its spellcasting ability is Charisma (spell save DC 13, +5 to hit with spell attacks).