Volgorov's Vocal Mimicry

You alter the sound of your voice to mimic a voice you have heard before. Alternatively, you may change one or more aspects of your voice, such as volume, pitch, dialect, etc. to create a new false voice. Your altered voice cannot be increased to a volume that causes damage, nor does it allow you to speak in a language that you do not understand. You may alter your chosen voice or return to your normal voice at any time before the spell ends.

You have advantage on your Charisma checks made to impersonate someone while mimicking their voice with this spell (at the DM's discretion).

A creature may make a Wisdom (Insight) check against your spell save DC to determine the voice they are hearing is a false one.