Blades of Putrefaction

Blades of Putrefaction is a spell that has a casting
value of 7 and a range of 14". If successfully cast,
pick one friendly Maggotkin of Nurgle unit
within range and visible to the caster. Until
your next hero phase, each attack made with a
missile weapon or melee weapon by that unit
inflicts 1 disease point on the target unit on an
unmodified hit roll of 5 or 6.