Methane Tank

Naturally produced by decaying matter, methane is what the planet exhales while it dies. This tank of liquid farts is best deployed when you want a fire to erupt fast and furious, blasting heat across the room before it has a chance to hit back. It spreads wide, burns hot, and vanishes quick. Let methane out inside a building and the whole place will reek like the inside of an arse, but once it's burned away it leaves behind the telltale signs of a natural gas leak, making even the most suspicious fire look as innocent as a baby with an alibi.