on hit the target takes 1d6 acid damage and must make a con saving throw

on a failed con save 10+half lvl rounded down the target is blighted

blight debuff lasts 1 minute  

blight lvl 1 deals 1 dmg on the round increasing to lvl 5 dealing 5 dmg  

if the blighted target dies all creatures within 5ft of the target must make the con save or take the blight debuff

items required: bone naga poison, will o wisp