Iron body

Iron body is a transmutation spell that turns the subject's body to living iron.

Effects
This spell transforms your body into living iron, which grants you several powerful resistances and abilities.

You gain damage reduction 50/+3. You are immune to blindness, critical hits, ability score damage, deafness, disease, drowning, electricity, poison, stunning, and all spells or attacks that affect your physiology or respiration, because you have no physiology or respiration while this spell is in effect. You take only half damage from acid and fire of all kinds. However, you also become vulnerable to all special attacks that affect iron golems.

You gain a +6 enhancement bonus to your Strength score, but you suffer a -6 Dexterity penalty as well (to a minimum Dexterity score of 1), and your speed is reduced to half normal. You have an arcane spell failure chance of 50% and a -8 armor check penalty, just as if you were clad in full plate armor. You cannot drink (and thus can't use potions) or play wind instruments.

Your unarmed attacks deal 1d6 points of lethal damage, and you are considered "armed" when making unarmed attacks (a Small caster deals 1d4 points of damage, not 1d6).

Your weight increases by a factor of ten, causing you to sink in water like a stone. However, you could survive the crushing pressure and lack of air at the bottom of the ocean - at least until the spell expires.

Material components
A small piece of iron that was once part of an iron golem, a hero’s armor, or a war machine.