Celestial True Speech (Charisma)

You have mastered the divine power of the Celestial language, you gain the following benefits

• Increase your Charisma or Wisdom score by 1, to a maximum of 20.
• When you are speaking Celestial, you can attempt to charm one humanoid within 30 feet of you. It must make a Wisdom saving throw (DC 8 + your proficiency bonus + the ability modifier of the score increased by this feat) and does so with advantage if you or your companions are fighting it. If it fails the saving throw, it is charmed by you. That creature hears your words in their native language as if you were a native speaker. Additionally you gain the ability to comprehend any language they speak as if it were Celestial. This effect ends on a target after 10 minutes, if it takes any damage, if you attack it, or if it witnesses you attacking or damaging any of its allies. Once the duration ends or if the target succeeds on its saving throw, it has no hint that you tried to charm it. Once you use this feature, you can’t use it again until you finish a long rest.