Blade of Putrefaction

If manifested, select a visible friendly DEATH
GUARD unit within 18" of the psyker. Until
the start of your next psychic phase, add 1 to
all wound rolls made by that unit in the Fight
phase. Furthermore, any wound rolls of 7+ made
for that unit in the Fight phase with a melee
plague weapon (i.e. a plaguesword or any weapon
with the Plague Weapon ability) inflict a mortal
wound on the target in addition to any other
damage.