Lighters and matches don’t always work when wet, and can break or malfunction – especially the cheap ones. A sparking device, aka “firesteel”, will always light your stove or help make a survival fire. They have no moving parts and even work while wet.
The simpler sparker models have a striker and a sparker, while a more upscale version has a small bar of magnesium included. Shave off a few tiny bits of magnesium, add a spark, and you get a burst of almost 2000 degree C flame.
The Swedish company Light my Fire, (or a vendor at the Saturday market in Portland OR), both sell sparkers that will generate super-hot sparks, more then enough to light a camp stove and light a fire in a backcountry survival situation.