The dragon mind
The central question of dragon fiction is what kind of consciousness lives inside that enormous body. A creature that has existed for centuries, that perceives the world through biology entirely unlike the human, will not think the way your protagonist thinks. Time moves differently at that scale. Priorities — territory, lineage, the long view — are not human priorities. The craft challenge is to build a convincing internal logic that is consistent and alien at the same time: a mind that the reader can follow without ever forgetting that it is not a human mind wearing a dragon costume. The dragon that thinks like a big human is almost always the weakest dragon in the book.
The human-dragon bond
Rider bonds, speaking dragons, dragons as independent agents who choose to deal with humans — each of these implies a different power dynamic and a different kind of story. The craft challenge across all of them is to ensure the bond costs something real from both parties. A bond that only makes the human's life easier and never harder is wish-fulfillment. A bond that demands change — that requires the human to become something they were not, and the dragon to accept a relationship that constrains its nature — produces drama. The most resonant human-dragon relationships are the ones where both parties are changed by the encounter, and not always in comfortable ways.
Dragon biology and its world implications
A dragon is a massive flying predator with extraordinary energy requirements. A world that contains dragons should show it: in the shape of settlements (never built under a flight path without good reason), in agriculture (the livestock losses, the protected herds), in military strategy (what stops a dragon, and who controls the ones that can be controlled), in religion (what do people believe about creatures this powerful?). The worldbuilding failure is the dragon that appears when the plot needs spectacle and disappears otherwise. If dragons are real in your world, their reality should be felt in every aspect of the world's design, not just in the scenes where they breathe fire.
The dragon's relationship to power
Dragons in most traditions are creatures defined by their relationship to power: they accumulate treasure, hold territory, live long enough to outlast kingdoms. What does that mean for the dragon's social position in its own community? Are older dragons more powerful? Is there a hierarchy, and how is it contested? What is the relationship between a dragon's hoard and its sense of self? These questions are not incidental details — they are the structure of a dragon society that can drive plot and conflict as richly as any human political drama. A dragon with a position to defend, rivals to outmaneuver, and something genuinely at stake is a character. A dragon without those things is a set piece.
Eastern and Western traditions
Western dragon tradition — fire-breathing, treasure-hoarding, the enemy to be slain by the hero — is only one strand of a global mythology. East Asian dragons are creatures of water and wisdom, associated with rain, rivers, and imperial legitimacy; they are beings of blessing as much as danger. Norse, Slavic, and Mesoamerican traditions each offer distinct relationships between dragons and human civilization. Drawing on multiple traditions simultaneously produces a creature that feels genuinely strange — not a repackaged European dragon with extra detail, but something the reader has not quite encountered before. The richest dragon fiction tends to be the fiction that does not settle for one tradition's answers.
The dragon as character
Giving a dragon genuine interiority without anthropomorphizing it is one of the harder craft problems in the genre. The solution is almost always specificity: not "the dragon felt lonely" but the specific behavior that loneliness produces in a creature of this size, age, and biology. What does a dragon want that it cannot have? What does it fear — and does it experience fear in a way that maps onto human fear, or is the phenomenology different? What does it value, and why? A dragon with a specific, consistent inner life — one that follows from what it actually is rather than from human psychology projected outward — can carry as much of a novel as any human protagonist.