The combustion caverns

Combustion caves are very dangerous… This caves have much gas leaks into the caves. This gas is not poisonous to the player it is highly flammable meaning if you place a torch down the gas will explode. You may be thinking that this is a Death wish but there happens to be a use for the gas and the mob that lives down there. The gas for one can be used to fuel a furnace. Two can be used to blow up large chunks of ground. The mob can eat the gas so if you have a gas leek you can have it eat it.