I have a nigh-invulnerable FB in my fort that I absolutely need to be caged.
He's been wandering the 3rd layer of my caverns for over 10 years, and nobody was able to harm him in any way. Crystal glass seems to be impenetrable, while his webbing ability makes any battle one-sided.
My arena is nearing its completion, with many contestants already waiting for their moment of glory in the cages, including a bronze colossus. But I have troubles caging this one, since he is immune to giant cave spider webs and stunning. I do have a few more ideas, but all of them will be a hellish pain in the butt to set up, so maybe someone tried these before?
1. Using smoke. The creature is immune to fire, but I know that he can be blinded by smoke. One of the other FB's that challenged him, a giant fire-breating mite, managed to ignite the caverns and proceed to beat the titan for more than 23 pages of combat. The titan didn't respond due to being unable to see through the smoke. The smoke eventually evaporated, and the battle was over in an instant. So, do smoke-blinded creatures trigger traps?
2. Using water. Even though he can't be stunned, maybe a high-pressure water beam can knock him prone. If he falls on the trap, will the trap trigger?
3. Using FB webs. I can't be 100% sure if he is immune to all webs. He fought a FB spider and a FB tarantula. The combat log was very unclear, but someone definitely got webbed. It went smth like "the FB is caught in FB's webs", "the FB is free from FB webs", etc. If that is the case, will webbing the traps with another FB's webs make them effective?
Aaand, I think that covers my ideas for now. Of course I could sorta "lure" him inside the arena and seal inside, but that option comes with its own drawbacks. I would rather leave as a last-resort one.
Another thing. Does anyone happen to know if dwarves are capable of starting to worship a megabeast out of the blue? What if they personally witness the creature slaying all megabeasts remaining in the world? I'm pretty sure I saw HFs worshipping megabeasts, but I don't know what causes this behavior exactly.
Edit: almost forgot. If a weapon is left within humanoid-FB's reach, can it pick up and use this weapon?