Hellish Rebuke
1st-level Evocation
Casting Time
Reaction, which you take in response to taking damage from a creature that you can see within 60 feet of yourself
Range
60 feet
Duration
Instantaneous
Components
V (Verbal)
S (Somatic)
Description
The creature that damaged you is momentarily surrounded by green flames. It makes a Dexterity saving throw, taking 2d10 Fire damage on a failed save or half as much damage on a successful one.
At Higher Levels
The damage increases by 1d10 for each spell slot level above 1.
Source: SRD 5.2