name: nightmare dragon
class: draconic reptile
behavior: nightmare dragons are aggressive only to those who pose a threat not to harmless
type: carnivore
lifespan: infinite
mating: once ever a thousand years it will lay a egg that will take 100 years to hatch and no need to be fertilized and any gender be it male or female it does not need another dragon.
abilites: when the dragon is in near death situation it can cause explosin depends on the power of dragonUpon its sacrifice the land will be restored once the flames die down and an egg will be left in its place. Albeit left over for a few years will be a gas that will cause anyone who spends more than 20 minutes in it to go completely insane unless they are caught in the blast then they will be insane immediately to the point they are cutting themselves up for no reason.
weakness: very heavy siege weaponry or a precison through the heart.