Ouch. Now that is a bad bomb if I have ever seen one, and nicely disguised, too. At least, I would think that it takes great expense and a lot of time (and magical power) to create, so it is not going to be produced very often. Still it is a dangerous toy.
Plot hook: one major bombing like the above was successful, the knowledge spreads quickly, and everywhere start people in charge getting concerned about possible security risks. If a rumour of another prepared attack gets out, people may start to panic, and act really weird around chainmails (or any armours, actually!). This may even lead to a rapid dislike of chainmails. Go to Comment
Another great item iwhished i ad thought of it. I can see an evil empire outfitting some of its men with this, mixed with regular armor, and programmed to go of if they try to surrender to the rebels... Go to Comment
"and the assassin will have no problem handing over his weapons at the door..."- nice!!
This is weird, I again loved the effect/power more than the history, just as I did your last item, though the history is good. I think it is more a nod to the armor's ingenuity! I love it because of all of the possible applications in game-play it conjures up. Nice work valaddar!
Yes, these items are generally one-off constructions. They are very expensive (that is why the target in the backstory was a king) and need suprise to be effective. Once mages know what to look for, these suits lose their effectiveness. Go to Comment
In any case, I would let the GM decide on how well they are known. Their power is increased by their rarity. In this case, only Kagerith knows the way to make these suits (he has apprentices, but he is jealous of his secrets, so they only know part of the process). If his written works were stolen, then other mages could carry on with production. Go to Comment