Berserk (Ex): When a clay golem enters combat, there is a cumulative 1% chance each round that its elemental spirit breaks free and the golem goes berserk. The uncontrolled golem goes on a rampage, attacking the nearest living creature or smashing some object smaller than itself if no creature is within reach, then moving on to spread more destruction. Once a clay golem goes berserk, no known method can reestablish control.

Cursed Wound (Ex): The damage a clay golem deals doesn't heal naturally and resists healing spells. A character attempting to cast a conjuration (healing) spell on a creature damaged by a clay golem must succeed on a DC 26 caster level check, or the spell has no effect on the injured character.

Immunity to Magic (Ex): A clay golem is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.

A move earth spell drives the golem back 120 feet and deals 3d12 points of damage to it.

A disintegrate spell slows the golem (as the slow spell) for 1d6 rounds and deals 1d12 points of damage.

An earthquake spell cast directly at a clay golem stops it from moving on its next turn and deals 5d10 points of damage. The golem gets no saving throw against any of these effects.

Any magical attack against a clay golem that deals acid damage heals 1 point of damage for every 3 points of damage it would otherwise deal. If the amount of healing would cause the golem to exceed its full normal hit points, it gains any excess as temporary hit points. For example, a clay golem hit by the breath weapon of a black dragon heals 7 points of damage if the attack would have dealt 22 points of damage. A clay golem golem gets no saving throw against magical attacks that deal acid damage.

Haste (Su): After it has engaged in at least 1 round of combat, a clay golem can haste itself once per day as a free action. The effect lasts 3 rounds and is otherwise the same as the spell.

Berserk (Ex): When a flesh golem enters combat, there is a cumulative 1% chance each round that its elemental spirit breaks free and the golem goes berserk. The uncontrolled golem goes on a rampage, attacking the nearest living creature or smashing some object smaller than itself if no creature is within reach, then moving on to spread more destruction. The golem's creator, if within 60 feet, can try to regain control by speaking firmly and persuasively to the golem, which requires a DC 19 Charisma check. It takes 1 minute of inactivity by the golem to reset the golem's berserk chance to 0%.

Immunity to Magic (Ex): A flesh golem is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.

A magical attack that deals cold or fire damage slows a flesh golem (as the slow spell) for 2d6 rounds, with no saving throw.

A magical attack that deals electricity damage breaks any slow effect on the golem and heals 1 point of damage for every 3 points of damage the attack would otherwise deal. If the amount of healing would cause the golem to exceed its full normal hit points, it gains any excess as temporary hit points. For example, a flesh golem hit by a lightning bolt heals 3 points of damage if the attack would have dealt 11 points of damage. A flesh golem golem gets no saving throw against attacks that deal electricity damage.

Breath Weapon (Su): 10-foot cube, cloud of poisonous gas lasting 1 round, free action once every 1d4+1 rounds; initial damage 1d4 Con, secondary damage 3d4 Con, Fortitude DC 19 negates. The save DC is Constitution-based.

Immunity to Magic (Ex): An iron golem is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.

A magical attack that deals electricity damage slows an iron golem (as the slow spell) for 3 rounds, with no saving throw.

A magical attack that deals fire damage breaks any slow effect on the golem and heals 1 point of damage for each 3 points of damage the attack would otherwise deal. If the amount of healing would cause the golem to exceed its full normal hit points, it gains any excess as temporary hit points. For example, an iron golem hit by a fireball gains back 6 hit points if the damage total is 18 points. An iron golem gets no saving throw against fire effects.

An iron golem is affected normally by rust attacks, such as that of a rust monster or a rusting grasp spell.

Slow (Su): A stone golem can use a slow effect, as the spell, as a free action once every 2 rounds. The effect has a range of 10 feet and a duration of 7 rounds, requiring a DC 17 Will save to negate. The save DC is Constitution-based.

Immunity to Magic (Ex): A stone golem is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.

A transmute rock to mud spell slows a stone golem (as the slow spell) for 2d6 rounds, with no saving throw, while transmute mud to rock heals all of its lost hit points.

A stone to flesh spell does not actually change the golem's structure but negates its damage reduction and immunity to magic for 1 full round.