Exploding

If a fighter is taken Out of Action by a weapon
with the Toxin trait with this Toxic Ammo
applied, before removing them from the
battlefield place a 3" Blast marker over that
fighter, with the marker's central hole centred on
their base. All fighters touched by this Blast
marker suffer an immediate hit as if from a
weapon with the Gas trait.
The venoms in explosive toxins attack their victims, literally expanding their organs until they explode.