At the end of each of your turns, roll a D6 for each of your models with this special rule that has less than its starting number of Wounds or Hull Points, but has not been removed as a casualty or destroyed. On a 5+, that model regains a Wound or Hull Point lost earlier in the game.
A model equipped with a phylactery has the It Will Not Die special rule. If the model is the rider of a Chariot, both he and the Chariot have the It Will Not Die special rule.