Cast Time Reacción, que llevas a cabo
Range 18 m
Components V, S
Duration Instantáneo
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. Using a Higher-Level Spell Slot: The damage increases by 1d10 for each spell slot level above 1.