30 Assassins, both great and pathetic. - Die, by our hands…
Barnacles and bilge rats, a pernicious package of perfidious pirates!
The are 30 thieves, killers and other criminals that ought to be behind bars.
Mining in a certain area turns all exposed skin (maybe just parts that are actively disturbing the chemicals that cause the reaction) of the those doing the mining to a dark blue color. Will wear off taking as many years/days spent in the mine.