A protective magical force surrounds you or a target of your choice, manifesting as growing thorns and vines which cover the target and his gear. The Target gains 5 temporary hit points for the duration. If a creature hits the target with a melee attack while it has these hit points, the creature takes 5 piercing damage. As long the target is covered in thorns and vines, his meele attacks deal 1d4 additional piercing damage but it is also vulnerable to fire.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, both the temporary hit points and the piercing damage increase by 5 for each slot.