Searing Smite

Cast Time: 1 Bonus Action | Concentration
Mats: V | Range: Self | Duration: 1 Minute
The next time you hit a creature with a melee
attack, the attack deals an extra 1d6 fire damage
to the target and lights it ablaze. At the start of
its turns, the target must make a Constitution
saving throw. If failed, it takes 1d6 fire damage.
On a success, the flames are extinguished.
Levels: +1d6 initial damage per level above 1st