Impostor

Rogues that choose the Impostor archetype value their ability to mingle into a crowd unnoticed, to pass off blame as easily as breathing, and to change their physical form to suit their needs.

Clear Vision

At 3rd level, your sight is unimpeded by any darkness. You can see normally in darkness, both magical and nonmagical, to a distance of 60 feet.

Perfect Disguise

Also at 3rd level, you have an impeccable ability to disguise yourself. You can cast Disguise Self at will, without requiring components. You also have proficiency with the disguise kit.

Venting

At 9th level, you are a master of getting through tight spaces. Crawling no longer costs you extra movement. In addition, you can stand up from prone by expending only 5 feet, and you do not suffer disadvantage on attack rolls while prone.

Deceitful

By 13th level, you excel in moving the blame away from yourself. You have advantage on all Charisma (Deception) checks you make to blame another creature for your actions and doings.

Morphic Body

Also at 13th level, your ability to disguise your body has expanded, allowing you to physically morph your form. You can cast the Alter Self spell at will. In addition, when you create natural weapons, they deal 1d10 damage of an appropriate type, and they have the Finesse property.

Saboteur

At 17th level, you gain the ability to disrupt and sabotage the lives of others. As an action, you can perform a sabotage, choosing one of the following:

• You can choose one door, window, chest, padlock, or other object within 30 feet of you that contains a mundane means that prevents access. That object becomes magically locked for 1 minute. While affected by this spell, the object is more difficult to break or force open; the DC to break it or pick any locks on it increases by 10.
• You can cast the Illusory Script spell without requiring material components. In addition, you can cast Illusory Script on existing nonmagical written text, as if you had written that text. The existing text has the effects of Illusory Script for the next minute.
• You can cast the Darkness spell without requiring material components.

You can use this feature a number of times equal to your Charisma modifier, and you regain expended uses when you finish a long rest.