Dragonfire

Dragonfire is the eternal flame of a dragon's essence, a part of its soul some say, and can only be brought into the world when a dragon is cut deep certain ways that the dragonfire leaks directly out the wounds, or if a dragon uses its breath so much that it exhausts itself, and is left only breathing the white flames.

Dragonfire burns with a surprisingly low temperature and never goes out unless purposefully extingished by being smothered or put out with certain types of water. It can catch other things alight easily and the fires it starts burns hotter than any others.