Armor of Othrys (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S, M (a single flaming torch)|
The creature you touch glows with an aura that resembles moving spectral magma, creating an ablative shield. The target gains temporary hit points equal to 4 + your spellcasting ability modifier. In addition, if the target is hit with a melee attack whilst it has temporary hit points granted by this spell, the attacker takes 1d6 fire damage if it is within 5 feet.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the temporary hit points increase by 5 for each slot level above 1st.