Fiendish Influencer

Power can be bought, bargained for, or even stolen. It just takes the knowledge to do so.
You bear the influence of the forces of Gehenna. Fiendish entities not shackled to the war of law and chaos, Yugoloths serve their own interests and any master. For the right price.
Their gift to you is an investment and bestows you abilities the yugoloths themselves find desirable.
(Part of a Yugoloth update i'm doing! Stay tuned for stat blocks, feats, subclasses, new lore, and new monsters! Yugoloths and You: A guide to the working fiend!)

Lower Planes Emissary: You gain proficiency in one skill of your choice. Additionally, you learn both Infernal and Abyssal. If you have already learned one or both of the fiendish languages, you may instead replace it with one language of your choice.

I think That's Mine: As a magic action you may imbue one nonmagical item, no larger than large sized, to bond with. This item can be summoned with a bonus action to an unoccupied location within 10 feet of you as a bonus action. If destroyed the bonded item can be reformed by performing a ritual that requires an amount of gold equal to the item's value, over the course of 1 hour.

Job Well Done: After successfully completing the terms of any contract or deal that involved payment you gain heroic inspiration if you lacked it. Once you use this benefit, you can’t use it again until you finish a Short or Long Rest.