Devour Memories

You can use your action to attack and try to consume the memories of a foe.

When you use this ability, target one creature you can see within 5 feet of you and have them make a Wisdom saving throw. The DC for this saving throw equals 8 + your Intelligence modifier + your proficiency bonus. On a failed save the creature takes ld8 psychic damage.

The damage increases to 2d8 at 6th level 3d8 at 11th level and 4d8 at 16th level

If you bring a target to 0HP with this attack, you completely drain their mind and steal their memories, leaving them mindless husks instead of dead.