Heated Body. A creature that touches the fire wyrm or hits it with a melee attack while within 5 feet of it takes 3 (1d6) fire damage.   Illumination. The fire wyrm sheds bright light in a 10-­foot radius and dim light for an additional 10 feet.   Incorporeal Movement (Recharge 4–6). The fire wyrm can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.