Very nice. Though the weakness to strongly-presented valuables seems a little odd. For one thing, I keep imagining a guy in a business suit holding one of these things at bay by pulling out a wad of bills and screaming, "You can't kill me! I have money!" For another thing, surely a display of wealth would simply enrage the Llymha, and since most of the Llymha's targets will be wealthy people, they end up unable to perform the kidnappings you mention. Though the restriction from entering a place of wealth makes sense: These guys are the essence of poverty.