Ulthwe

Each time a unit with this attribute is selected to shoot or fight, you can re-roll one wound roll when resolving that unit's attacks. Each time you take a Psychic test for a PSYKER unit with this attribute, if it is the first Psychic test taken for that unit this turn, add 1 to the result. Models with this attribute have a 6+ invulnerable save. Each time a model with this attribute would lose a wound as a result of a mortal wound, roll one D6: on a 5+, that wound is not lost.