Editing Creature Fixes (section)

==Special Rule==
*Mechanical: Models with this special rule are immune to the Poison, Fleshbane and Force special rules. However, attacks with the Haywire special rule wound on a 2+ and are Rending, attacks with the Armourbane special rules cause Instant Death on a roll of 6 To Wound and the Lance special rule will wound on a 4+ and gain a re-roll if the weapons strength is higher than the targets toughness.
The simplest fix is a special rule to represent a model with a mechanical nature. Give it to Necrons, Battlesuits, Mechanicum machines, servitors and anything else that's appropriate.