Rakdos Signet

A signet has 3 Charges, regaining 1D2 charges daily.
You can expend a charge to cast Hellish Rebuke
Additionally while attuned to this ring you can cast the following spells as if they were on your class spell list:
•Cantrip: Fire Bolt, Vicious Mockery
•1st Level: Burning Hands, Hellish Rebuke