Entity: Witch Gnoll

Source The Mwangi Expanse pg. 112 ^2.0

You're a shaggy, dark-furred gnoll capable of making some truly uncanny sounds. You can cast the ghost sound cantrip as an occult innate spell at will. A cantrip is heightened to a spell level equal to half your level rounded up. In addition, you gain a +1 circumstance bonus to checks to Impersonate and Create a Diversion when using only your voice.