Gift of the Green Hag

You’ve learned some of the magic possessed by green hags, granting you the following benefits:

• You gain proficiency in Arcana.
• You learn the vicious mockery cantrip (if you aren't a spellcaster, Charisma is your spellcasting ability for this cantrip).
• As an action, you can cover yourself and anything you are wearing or carrying with a magical illusion that makes you look like another creature of your general size and humanoid shape. The illusion ends if you take a bonus action to end it or if you are incapacitated.

  The changes wrought by this effect fail to hold up to physical inspection. Otherwise, a creature must take an action to visually inspect the illusion and succeed on a DC 20 Intelligence (Investigation) check to discern that you are disguised. Once you have used this feature you can't use it again until you finish a short or long rest.