A Scadrian magic system that steals Investiture from one person and transfers it to another through the use of metal spikes driven through specific bind points in the body. The stolen power is diminished in the transfer, making Hemalurgy end-negative - it always destroys some of the power it moves. Different metals steal different attributes: iron steals Allomantic physical powers, steel steals Allomantic mental powers, and atium can steal any power.