Devil’s Tongue

The creature knows the vicious mockery cantrip. When it reaches 3rd level, it can cast the charm person spell as a 2nd-level spell once with this trait. When it reaches 5th level, it can cast the enthral spell once with this trait. It must finish a long rest to cast these spells once again with this trait. Charisma is its spellcasting ability for them. (Tiefling Variants, pp. 118, SCAG)