Nemesis Force Weapon
(Rule)Description: All Nemesis weapons are Force Weapons. Note that a unit of Grey Knights with the Brotherhood of Psykers special rule needs to take only a single Psychic test to 'activate' all of its force weapons (although independent characters must still roll separately). If the test is passed, all wounds caused by the unit's Nemesis force weapons that phase inflict Instant Death. If a unit is striking at different Initiative orders, take the Psychic test to 'activate' the force weapons immediately after the first unsaved wounds are caused. Any further wounds caused by the unit's Nemesis Force Weapons that phase will be bound by the result of that Psychic test.
Any Daemon or Psyker that suffers one or more unsaved wounds from Nemesis Force Weapons must take a Leadership test at the end of the Assault phase. If the test is passed, nothing happens. If the test is failed, the model is removed as a casualty. This ability applies regardless of whether or not the Nemesis Force Weapons have been successfully activated.