The Medusa’s Scales: All Shooting Attacks made against a model with this special rule that does not have the Vehicle Unit Type, suffer a modifier of -1 to the Strength of the attack. Models with this special rule and the Vehicle Unit Type instead gain the It Will Not Die (6+) special rule, or if such a model already has a variant of the It Will Not Die special rule then the value of that special rule is increased by +1 (for example, a model with the Vehicle Unit Type that already had the It Will Not Die (6+) and the Legiones Astartes (Iron Hands) special rule would instead gain the It Will Not Die (5+) special rule).
When a model with this special rule suffers an unsaved Wound, it can make a special Feel No Pain roll to avoid being Wounded (this is a special Saving Throw which is made after unsaved Wounds are suffered). Feel No Pain rolls may not be taken against unsaved Wounds that have the Instant Death special rule. Roll a D6 each time an unsaved Wound is suffered. On a result that is equal to or greater than the value in brackets, the unsaved Wound is discounted - treat it as having been saved. On any other result the Wound is taken as normal. For example, a unit with the special rule Feel No Pain (5+) would need to score a 5 or 6 in order to discount a Wound inflicted upon it. This is a Damage Mitigation roll - any model may make only a single Damage Mitigation roll of any type for any given Wound (see page 174).
A unit that includes any models with this special rule may not be joined by any model that does not also have this special rule (this includes Legion Techmarines and Legion Apothecaries, which may not be assigned to a unit with this special rule unless they also have this special rule).
When a unit that contains at least one model with this special rule takes Morale checks or Pinning tests, the unit ignore any negative Leadership modifiers. If a unit is both Fearless and Stubborn, the unit uses the rules for Fearless instead.
When a unit that includes at least one model with this special rule has at least half of its models within 6" of an Objective then all models in the unit gain the Feel No Pain (6+) and Stubborn special rules. If any model in the unit already has a variant of the Feel No Pain special rule then instead increase the value in brackets of one of those rules by +1 while the unit has at least half of its models within 6" of an Objective (for example, a model that already had Feel No Pain (5+) could choose to increase this to Feel No Pain (4+) while it fulfils the conditions of this special rule).
