Grimman52's page

I see no game mechanic for held in place.

Which means at best it's a rider effect to paralyze.

When you're immune to something you're immune to its rider effects too, as evidenced in more than a few DR and Immunity FAQ.

I would think it it would work like the anchoring weapon enchant in ultimate equipment.

Yes.

Isn’t “ paralyzed and held in place” two separate effects? I understand that they’re immune to paralysis but wouldn’t they still be anchored in place?

Grimman52 wrote:

What creature type does Chains of Light not work against?

Constructs, dragons, oozes, plants, and undead are immune to paralysis, so they wouldn't be affected by chains of light. Creatures with the behemoth, elemental, Great Old One, and inevitable subtypes are also immune, as are any number of other individual creatures.

A creature targeted by this spell is held immobile by glowing golden chains composed of pure light. [b]The creature is paralyzed and held in place[b], but may attempt a new saving throw each round to end the effect. While held by the golden chains, a creature cannot use any sort of extradimensional travel, such as astral projection, blink, dimension door, ethereal jaunt, etherealness, gate, maze, plane shift, shadow walk, teleport, and similar spells and spell-like abilities. The spell does not affect creatures that are already in ethereal or astral form when the spell is cast.

Since the creatures previously listed are immune to paralysis does that mean they are also not subject to being held in place?

What creature type does Chains of Light not work against?