You know how to handle money well, and how to utillize dirty money. Your Wealth score increases by 4 once when you take this feature. Additionally, you gain the following abilities:
Haggler
You perfect the art of haggling. You now have advantage on persuasion checks when attempting to buy items for lower than their marked price.
Dirty Money
You are able to taint the cash that touches your hands. For a certain cunning die cost, you are able to cause a number of effects on a single targeted creature within fifteen feet of you. The target must succeed on a DC (8 + Proficiency Bonus + Charisma Modifier) Constitution saving throw or be inflicted with one of the chosen conditions below, using up the listed gp either way:
Fraudulent Claim
You gain expertise in the Deception skill. Lying about deals to anyone with under 12 wisdom is an instant success.
Mugger
When making a successful melee attack, make a Sleight of Hand check, If the result is 19 or higher, you steal your choice of any single item the enemy has that is not in their hands.