Base Class: Rogue
A Rogue who's focus branches away from combat, assassination and thievery and into the illicit markets of the world, a tradesman in the shadows, a purveyor of illegal goods and a crafter of the unlicensed
Eye for Quality
When you choose this archetype at 3rd level, you may cast identify twice per short rest without any components. At level 8, this increases to thrice per short rest, and four times per short rest at level 15.
Smarttering
At 3rd level, you've devoted yourself to the preservation of a product, and swift force in taking out any competition to gain that product. As such, you devote using your mind to work your words, drawing on observation and intuition to convince your customer of your truth. Whenever you make a Charisma check, you gain a bonus equal to either your Intelligence or Wisdom modifier (your choice) to that check (minimum of 1).
The Negotiator
Starting at 9th level, you use your powers of persuasion to negotiate better deals. You gain advantage on any persuasion or deception checks made for bartering or haggling.
Susy Boi
At 13th level, you gain the ability to unerringly mimic another person's speech, writing, and behavior. You must spend at least three hours studying these three components of the person's behavior, listening to speech, examining handwriting, and observing mannerisms.
Your ruse is indiscernible to the casual observer. If a wary creature suspects something is amiss, you have advantage on any Charisma (Deception) check you make to avoid detection.
Deceitful
Starting at 17th level, your thoughts can't be read by telepathy or other means, unless you allow it. You can present false thoughts by making a Charisma (Deception) check contested by the mind reader's Wisdom (Insight) check.
Additionally, no matter what you say, magic that would determine if you are telling the truth indicates you are being truthful if you so choose, and you can't be compelled to tell the truth by magic.