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.
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So, we need some kind of mass destruction yet again. Or a way to trap it in an area. Rob can I run past the Clay Golem to the room he came from, without getting hit? Maybe there's a clue in his old area. Or maybe get a barrel of oil from the Kitchen to roll at this guy?
I'd also like to try and recall what methods my people used to defeat golems that went on a rampage...I'm sure many were used to build the pyramids, and the spaceships, and I bet many went berzerk. So what did my peeps do?