It is supposed to be a physical process, like some materials glow when struck by UV light, so it is difficult to interfere with it apart from blocking the magic emmissions.
Now, since it is not in itself magic, spells could be created to darken the material again or otherwise hide it's feedback. Without any magical energy of it's own, it will have no way to oppose a magical effect.
As for it's mechanical strength, it is an analog to silver and can be mixed with steel or other alloys, but it will reduce the strength of that material. It is much better used as a surface treatment, just as you would silver a sword or arrow. I'm partial to the idea of inlaid runes myself, glowing mystical symbols instead of the whole blade.
In worlds where this metal can be found, use of it to produce devices 'certified' against magical influence would be common. To prevent magical tampering with scales used by merchants, it may be mandated that scales be made or at least coated with such a metal. This of course does not prevent more mundane forms of tampering, but should prevent use of invisable weights. Go to Comment
Intersting idea with even execution. I would of liked a few more applications as to what kind of electrical traps and so on it was used for. We don't get a feel for the amount of power this is. Depending on a gamesystem, skill outweights spell channels, so I needed more examples on that to use this as more than just an inspiration.
Oddly enough, when i read the part about erosion in the poles, the first thing I though of was that it would likely be the mithril pole degrading first since it is the less dense metal. I like the idea alot and it really fits into my K'ton world view. Go to Comment
I can see these being used by dwarven warriors as a weapon, seeing as humanoid bodies ARE conductive. Just poke them with it and deal fifty bagillion volts of pure energy, more fun than playing with a house circuit. Go to Comment
This is just a great sentence...
"The Dwarven Lightning bottle is a carefully crafted magical battery with a Mithral Anode, an Adamantite Cathode and Dragon’s Blood for the electrolyte."
(Some day, these precious and invaluable secrets, the blue-prints of the Dwarven Lightning Bottles, will be returned to the Dwarven Guild where they belong, away from the prying eyes of humans.) Go to Comment