I quite like this idea because it is highly adaptable. If your game does not focus on Ether a similar setup could be made for any 'aura' of your choosing. What a perfect way to harken the arrival of the BBEG, chimes ringing furiously in a place absent of wind but with a darkening sky. They could also function like Tribbles + Kingons, which is to say if some ethereal/evil has posessed a human or is disguised they still react. They're just a really nice touch that can be added anywhere.
I am not going to vote yet, because this is so close to being a five but is missing one crucial thing to me. Motivation. What is the mission of the circus? Why does this god value laughter? Why does he have a group of laughing assassins? I feel like all of this could be explained if I just knew what the motivation of the cult or their god was.
Another top-notch submission. I love how all of your animals seem pausable and well tailored to their environment. The plot hooks seem a little on the thin side, but I'm still glad they're there. Thanks so much for posting the picture as well, most of your submissions are so clear I don't need one, but this creature is particularly complex looking.
I concur with Infested Jerk. Print it out on a sheet of paper and read it aloud to yourself or better yet have a friend read it to you.
This item does not seem cursed, typically a cursed item has some sort of detrimental effect on the wielder.
Is Damon Lord a person, or do you mean Deamon?
This is a very nice and simple low level complication, with so many ways of it being overcome you don't have to worry too much about whether your players are carrying a grappling hook or not. At higher levels it tends to lose its usefulness when magic-solves-everything kicks in. I think it lacks an added layer of challenge though. I'll post some ideas on the scroll.
Additional complications to increase difficulty and/or lethality without too much effort on the builder's part:
A very good and complete writeup of an uncommon piece of equipment. Does the Kellerhadrin Plant fiber ever wear out or degrade? I'm sure the suits are broken far before then, but it seems a releveant qestion. If the plants are still alive when they are used you might even have to water your armor.