Pathogenic

After a fighter is hit by a weapon with the Gas
trait with this Gaseous Ammo applied, place a
marker next to them. At the start of that fighter's
next activation, roll a D6. On a 3+, immediately
remove this marker. On a roll of 1 or 2, the
fighter immediately suffers the effect of the Gas
trait, just as if they had been hit by the same
weapon again.
There are many kinds of microbic chems that induce
rapid necrosis in human flesh.