Changes

To create the blight grenade, one must sever the head of a creature and succeed on a Craft (Alchemy) or Craft (Taxidermy) check. They must also cast ''[[SRD:Contagion|contagion]]'' upon the head, choosing one of the diseases possible with the spell. Though magic is used as part of creation, no item creation feat is needed and the resulting grenade is non-magical.