Enchant Weapons - Fire

 Every party member with a melee weapon finds that their weapons are now alight; for the next hour, all party members' attacks deal an additional 1d8 fire damage, and the opponent must make a Constitution saving throw (dc 15); on a failure, the enemy is burned. At the start of the enemy's turn, they must make this same saving throw or suffer 1d4 fire damage. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.