Annoying Belch

A character with this feat is adept at creating long, gusty burps of sufficient odor and decibel level to disrupt concentration.  Prerequisite: Non-lawful.  

Gain proficiency in Intimidation checks, or expertise if already proficient.  Increase CHA score by 1.

As a Bonus action, a character with this feat can unleash an Annoying Belch. This discharge is sufficiently disgusting that anyone within 25 feet who is casting spells, using  spell-like abilities, or using skills requiring focus must make a successful Concentration check vs a DC equaling 8 + proficiency bonus + CHA modifier suffering 1d4 poison damage, and losing concentration on a fail or, on a success taking the damage but maintaining concentration.  Regardless if a pass or a fail, all creatures within range of this cloud of gas are poisoned for 1 minute as they fight the desire to retch.  At the DM's discretion, on subsequent rounds, affected creatures may also be subject to an additional Constitution saving throw or risk losing their action as they retch and vomit due to the incapacitating stench that engulfed them. The belcher, naturally, is immune to their own putrid stench.

Special: No one being can be successfully subjected to an Annoying Belch more than three times, as such an attack eventually loses its shock value.