1. Mustard Gas Could be used for filling up a room 10x10 and takes 2 hearts per second 2. Agent Orange During the War of Vietnam, it was widely used for deforestation of the large areas covered by thick jungle, to enable easier and more effective bombing of enemy bases and supply routes. Although designed as herbicide, the Agent Orange also contained large amounts of dioxin, a highly toxic compound, making it one of the most deadly chemical weapons ever deployed.
