Targeting a creature that has taken slashing or piercing damage in the last minute, you make it's blood heat and boil. The target creature must make a Constitution saving throw. On failure, it's blood begins to heat. At the start of it's turn while affected, it takes 3d4 fire damage and is crippled with agony, all terrain is difficult terrain for it. At the end of each of its turns, the target can make another Constitution saving throw. On a success, the spell ends on the target.