Dragons

"Have you considered actual dragons as the guilty party?"

- John Constantine

History
From ancient times, dragons were persistent in mythologies around the world including China.

At some point in time dragon has become a symbol of Wales. Later while Heddwich was established as a Welsh mining town in the USA, it become town's symbol as well.

Existing since at least 2013 Jade Dragon Restaurant in Starling City used dragons in it's name and imagery such as neon signs.

In 2014, unofficially investigating the mysterious death of Lannis Cadogan, who burnt to death in a shower, John Constantine visited Sully's Tavern, suggesting to Ellis McGee that dragons might be the actual "guilty party" behind the death and asking his opinion as a preacher about it.

Powers

 * Fire breathing: In most cases dragons are attributed to have a power of breathing fire.

Trivia

 * Constantine Drakon's surname means "Dragon" in many languages.
 * Although it was never confirmed, some of the dragon claims might be dinosaurs as well as time aberrations/anachronisms involving such or advanced weaponary.

Behind the scenes

 * In the real world dragons are a common type of legendary/mythological creature.
 * In the DC comics dragons exist in most of the established continuities. John Constantine crossed his path with dragons at least once in 2013, one year prior to Constantine startingon NBC. Oliver Queen likewise eencountered dragons, although mostly in hallucinations and dreams.