Transmutation [Cold]
Level: Cleric 4, Druid 4
Components: V, S
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: Metal equipment of one creature/level
Duration: 1 round/level
Saving Throw: Fortitude partial; see text
Spell Resistance: Yes
Any heat intense enough to damage the creature negates cold damage from the spell (and vice versa) on a point-for-point basis. For example, if the damage from a freeze armor spell indicates 5 points of cold damage and the creature plunges through a wall of fire in the same round and takes 8 points of fire damage, it winds up taking no cold damage and only 3 points of fire damage.
Source: Frostburn, page 94.