Expansive

This Gaseous Ammo can only be applied to a
weapon that has both the Gas and Blast (X")
traits. When placing a Blast marker generated by
a weapon with the Gas trait and this Gaseous
Ammo applied, a fighter may place one more
Blast marker than normal. This marker must be
placed so that it is touching at least one other
Blast marker generated by the weapon.
Helio-molecular stimulation of toxic gases allows Expansive gas to disperse over an extremely large area.