Bleed Fire

Blood begins to boil in the veins of your foes, blood in their wounds explodes into flames. Each wounded creature in a 60-foot cone must make a Constitution saving throw. A creature takes 4d8 fire damage on a failed save, or half as much damage on a successful one. On a failed save they continue to burn and repeat the save at the start of their turn. Taking 4d6 fire damage on a failed save and ending the effect on a successful one. 

A creature killed by this spell immolates. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.