Mithral Golem

Evasion — When the mithral golem rolls a success on a Reflex save, it gets a critical success instead.

Golem Antimagic — Harmed by cold and water (8d10 untyped, 2d10 untyped from areas or persistent damage); healed by transmutation (area 2d10 healing HP); slowed by electricity
A golem is immune to spells and magical abilities other than its own, but each type of golem is affected by a few types of magic in special ways. These exceptions are listed in shortened form in the golem's stat block, with the full rules appearing here. If an entry lists multiple types (such as "cold and water"), either type of spell can affect the golem.

Harmed By Any magic of this type that targets the golem causes it to take the listed amount of damage (this damage has no type) instead of the usual effect. If the golem starts its turn in an area of magic of this type or is affected by a persistent effect of the appropriate type, it takes the damage listed in the parenthetical.

Healed By Any magic of this type that targets the golem makes the golem lose the slowed condition and gain HP equal to half the damage the spell would have dealt. If the golem starts its turn in an area of this type of magic, it gains the HP listed in the parenthetical.

Slowed By Any magic of this type that targets the golem causes it to be Slowed 1 for 2d6 rounds instead of the usual effect. If the golem starts its turn in an area of this type of magic, it's slowed 1 for that round.

Vulnerable To Each golem is vulnerable to one or more specific spells, with the effects described in its stat block.

Swift Steps — A mithral golem is permanently Quickened, and it can use the extra action only to Step or Stride.

Vulnerable to Slow — A mithral golem is not healed by a Slow spell, and such spells affect them normally. A Haste spell reverses the effects of a slow spell immediately.

Liquefy — The mithral golem becomes fully liquid and amorphous. It gains immunity to precision damage, but it takes double damage from cold and water magic (see golem antimagic). The only actions it can use while Liquefied are move actions, Spike Storm, and spike Strikes. It can resume its normal form by taking this action again.

Spike Storm — The mithral golem makes a spike Strike against each target within its reach. These attacks count toward the mithral golem's multiple attack penalty, but its multiple attack penalty doesn't increase until after all the attacks.