Dragon's Bane is a supposedly magical concoction used by the sixth-century human wizard, Beorht. Its ingredients include sulfur, rock salt, seagull droppings, and charcoal. A Decepticon Raider in King Arthur's Court
For those who failed Introduction to Chemistry, this is essentially the formula for gunpowder. Or, as Ramjet says, "Guuunnnpoowwderrrrr!"