Changes

[[Summary::A killing weapon kill creatures in a single blow.]] When a creature is dealt damage by a killing weapon it must make a fortitude save (DC 20 + half the wielder's base attack bonus) or die outright, a creature who succeed it save is immune to the effects of killing weapons for 1 minute. Creature immune to [death] effect cannot be slain by this ability, but on a failed save they take an additional 100 damagesor have their hit points halved, whichever leave them with less hit points.