Call me "Creature", lostling, half-dragon of the planes; ie Corporal John Hearthfeld, Esq. - Assassin/ Enforcer "Rat-snake" .
Starts with scene excerpts, followed by working notes, ends with actual used Character Sheet data.
There are more ways than one to encounter a dragon. With a low level group it's obviously not feasible to meet one in its lair and fight it. But standing on a bleak moorland, utterly exposed and vulnerable, it can be a chilling experience to see something flying far far overhead. Something that could just be an eagle, but you never know...