Bip's Draconic Burn

You unleash a string of insults laced with subtle Draconic might and fire at a creature you can see within range. If the target can hear you (though it needs to understand Draconic or any other language you speak), it must succeed on a Charisma saving throw or take 2d4 fire damage and have disadvantage on the next attack roll it makes before the end of your next turn.