Wrath of the Kaiju, pg. 179
You gain the following benefits:
• Increase one ability score of your choice by 1, to a maximum of 20.
• You gain proficiency in the Persuasion skill, and become fluent in one language of your choice.
• Your words are hypnotic, dancing with promises of elegance and wealth. Over the course of 1 minute interacting with a non-hostile creature, you can attempt to charm them. That creature must succeed on a Wisdom saving throw (DC = 8 + your Charisma modifier + your proficiency bonus) or be charmed by you for 1 hour. Creatures easily tempted by promises of status and wealth (at the GM’s discretion) have disadvantage on this saving throw. If a creature succeeds on this saving throw, it becomes immune to this effect from you, recognising your attempt to influence it.