Blazing Smite

When you hit a creature with a melee weapon attack or an unarmed strike, you engulf the target of your attack with immolating flames. The attack deals an extra 1d6 fire damage to the target, and the target catches fire for 1 minute or until the spell ends. At the start of the creature's next turn, they take 1d6 fire damage and at the end of each of their turns they must make a dexterity saving throw, ending the flames on a success.

At Higher Levels. When you cast this spell using a spell slot of 2rd level or higher, each instance of damage increases by 1d6 for each slot level above 1st.