Searing Smite

D&D 2024 spell: Searing Smite. Source: Player's Handbook (2024). level 1, school Evocation, casting time 1 bonus, which you take immediately after hitting a...

As you hit the target, it takes an extra 1d6 Fire damage from the attack. At the start of each of its turns until the spell ends, the target takes 1d6 Fire damage and then makes a Constitution saving throw. On a failed save, the spell continues. On a successful save, the spell ends.

At Higher Levels

Using a Higher-Level Spell Slot All the damage increases by 1d6 for each spell slot level above 1.

Source: Player's Handbook (2024), p. 314 - Licenses and attribution