Carrying a Writ of Iron invests the bearer with one of the highest authority in Naggaroth. The bearer is empowered for a specific task that will bring glory to the dark elves. A representative of the Cult of Khaine brings the writ to the Drachau's chosen agent to verify the transfer of power and remind the bearer of its temporal nature. A bearer of a Writ of Iron can command all the resources of the city he belongs, but other institutions, like the Cult of Khaine or the Convent of Sorceresses, are beyond their authority.

If the bearer fails in their task or acts in a matter unbefitting to a representative of a drachau, the writ is molten down and poured down the throat of the offender.