D&D 5E Immutable Form: The golem is immune to any spell or effect that would alter its form.

[Athinar]

What does it mean by is immune to any spell that would alter it form?

Does magic missile affect or is it immune?

 

[Swarmkeeper]

What does it mean by is immune to any spell that would alter it form?

Does magic missile affect or is it immune?

Force damage does not alter a golem's form, so yes it causes damage.

Polymorph is an example of a spell that would not work against a golem.

 

[Athinar]

magical force - make a way through or into by physical strength; break open by force:
It could alter the form by breaking off chunks by the force of the spell

 

[MonsterEnvy]

magical force - make a way through or into by physical strength; break open by force:
It could alter the form by breaking off chunks by the force of the spell

Thats not what it means. It's pretty much immune to polymorph effects. And also some transmutation spells.

 

[FarBeyondC]

What does it mean by is immune to any spell that would alter it form?

Does magic missile affect or is it immune?

If immutable form was intended to make the golem immune to certain (or all) damage types, they would have put the relevant damage immunities in its stat block, not given it a trait for it.

 

[Athinar]

Then they weaken the golems from the older versions, but that is how I have been playing it, it is immune to only a few spells and advantage on saves

 

[Jester David]

Think casting transmute stone to mud on a clay golem or polymorph.

 

[DeanP]

Any spells cast by "Jenny Craig" and other weight loss wizards do not affect the golem.

 

[The Crimson Binome]

Then they weaken the golems from the older versions, but that is how I have been playing it, it is immune to only a few spells and advantage on saves

Yes, they have been getting progressively weaker in every edition. Old golems were immune to any spell that didn't otherwise have a unique effect on them (like stone to flesh making a stone golem squishy). In third edition, they were immune to anything that allowed a saving throw, which meant all evocations and no conjurations (so you couldn't throw a fireball at them, but you could throw an orb of fire at them).

In fifth edition, they just don't care anymore. The only real difference between a stone golem and an ogre is that the golem has bigger numbers.