The mutant is made up of living metal - a marvellous contrivance of gold, steel, and silver. Divide WS and BS by two and increase S by three. The mutant's T becomes seven. It also gains three fear points.
The mutant is immune to fire-based and cold-based damage and cannot be hit by non-magical weapons. Electricity-based attacks (such as Lightning Bolt spells) cause twice as many hits as normal.
The mutant may still receive attributes, including Mechanoid, which replaces its living metal body with a machine-like construction.