During the Crystal War, a number of smart bombs were designed by Adelheid Sturm
to cripple the forces of the Beastmen Confederate. These levitating bombs known as "tubes" detonate after a set amount of time when a target is close. Each tube releases an area of effect "blast" that inflicts targets with a status ailment.
A large number of tubes have been stolen from Bastok by Quadav during the many raids against Grauberg, They have shared their stolen goods with the Goblins, who reverse engineered them, creating very potent poison-inducing vials and flasks. The Goblins then in turn sold a number of these vials and flasks to the Orcish Hosts.