Your affinity with the Shadowfell’s melancholy grants you the following benefits.
Increase your Strength or Wisdom score by 1, to a maximum of 20.
You have Advantage on attack rolls against creatures within the Emanation of your Shroud of Shadows.
At the start of its turn, a creature Grappled by you must succeed on a Wisdom saving throw (DC equals 8 plus the ability modifier of the score increased by this feat and your Proficiency Bonus) or take 1d4 Psychic damage plus the ability modifier of the score increased by this feat.