You gather energy within your hands, pulling it to your fingers to transform them into bright, hot claws made of fire. When you hit with an unarmed strike during this spell, you deal an additional 1d4 fire damage, and the target must succeed on a Dexterity saving throw or take an additional 1d4 fire damage. Also, you may use your reaction when targeted with a melee attack to strike back with your claws. This reaction also benefits from the effect above.