5e SRD >Spells >

Hellish Rebuke

1st-level evocation

Casting Time:1 reaction, which you take in response to being damaged by a creature within 60 feet of you that you can see
Range:60 feet
Components:V, S
Duration:Instantaneous

You point your finger, and the creature that damaged you is momentarily surrounded by hellish flames. The creature must make a Dexterity saving throw. It takes 2d10 fire damage on a failed save, or half as much damage on a successful one.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.