(The art used, and the description themselves are not of my own creation. The art is done by Tots_Valeza, and the descriptions are from Dungeon Dad)

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Grey dragons are greedy, rapacious, and cunning creatures. Their bodies are armored with bony plates that rise into projecting spurs. Their tails are exceptionally long and forked with a pair of scythe-like bone blades. Their scales are a mottled grey and brown and their mouths are a sea of fangs. Their wings are small and muscular. The eyes of a grey dragon tend to be a glittering red or orange, and their heads are adorned with many small spikes and a set of sharp horns.

Thrill Of The Hunt. Grey dragons consider themselves the top of the food chain and unparalleled hunters. They are exceptionally skilled in the ways of tracking and slaughtering prey. They do this not just to feed themselves, but because they relish in the act of the hunt. Grey dragons feel at their best when they are stalking a creature that poses a real challenge. While they will resort to killing and eating livestock and other dull creatures to avoid starvation, they take no pleasure in the act. To them, the hunt is just as, if not more important, than the meal itself. They actively seek out powerful and elusive creatures so that they might hunt and kill them. Once they actually have their prey cornered, they take their time, making sure to savor the moment. They enjoy toying with their prey until they become bored and decide to go for the killing blow.

Venal Creatures. Grey dragons are among the most flippant draconic creatures to be found anywhere in the world. Their mood changes in an instant, and their words mean very little. They frequently turn diplomatic discussions into a game of cat and mouse. If an individual speaking with them fails to hold the dragon’s attention, the creature is liable to give the individual a half day’s head start with instructions to run and hide before chasing them down for its own amusement. However, for those with something of substance to offer a grey dragon, they can become a powerful ally. Grey dragons have little interest in treasure or riches, but the prospect to hunt a worthy opponent is an offer a grey dragon simply can’t refuse. Many grey dragons take up bounty hunting contracts on behalf of anyone who can offer them a proper challenge. These contracts frequently turn into regular working relationships where a grey dragon might rely on a kingdom’s bounty board for a steady flow of creatures to hunt, the more dangerous and elusive, the better.

Grim Mementos. Since they have little to no interest in gold and riches, grey dragon’s don’t hoard valuables in the same way other dragon’s might. What they do collect are mementos and trinkets taken from their successful hunts. A grey dragon will keep a vast collection of odds and ends that to anyone else, might seem to be completely useless. These “treasures” are all objects of sentimental value to the dragon. What to an onlooker might seem to be a random stone block could be a remnant from a powerful wizard’s tower the dragon tore down to get to the spellcaster within. A cracked wagon wheel might be from the wagon of a thief who thought they could flee by horse and carriage. A single pauldron might be from a noble knight who sought to challenge the dragon’s authority. Every item within the dragon’s collection has a story, and the dragon is bound to know them all. While intrinsic value is of little concern, there are always bound to be a few magical artifacts or useful items that find themselves within this collection by mere happenstance. The older the dragon, the more likely this is to be the case.