When this spell is placed upon a creature by a cleric, the creature's body is toughened to withstand heat, and boiling temperature is comfortable. The recipient of the resist fire spell can even stand in the midst of very hot or magical fires such as those produced by red-hot charcoal, a large amount of burning oil, flaming swords, fire storms, fire balls, meteor swarms, or red dragon's breath — but these will affect the creature, to some extent. The recipient of the spell gains a bonus of +3 on saving throws against such attack forms, and all damage sustained is reduced by 50%; therefore, if the saving throw is not made, the creature sustains one-half damage, and if the saving throw is made only one-quarter damage is sustained. Resistance to fire lasts for 1 turn for each level of experience of the cleric placing the spell. The caster needs a drop of mercury as the material component of this spell.