Unnatural Guise

You twist your features or mimic another creature’s appearance grotesquely. While the spell lasts, you gain advantage on Deception or Intimidation checks against creatures that can see you.
Your face and limbs subtly distort in impossible ways—mouths shift unnaturally, eyes widen too far, shadows cling to your form. Even familiar allies feel a twinge of wrongness when looking at you.
When cast using a spell slot higher than 1st, the duration increases by 1 minute per slot level above 1st.