Dragon

Magical, wild

Ancient, quadrupedal reptiles with wings.

(In order of rarity and power)
Red
Blue
Green
Grey
Black
Silver
Gold
White

Scales
Meat
Teeth
Leather
Bones

Horns
Wings

(Color: Shoulder Height/Length/Wingspan)
Red: 10'/50'/125'
Blue: 15'/75'/187.5'
Green: 20'/100'/250'
Grey: 25'/125'/312.5'
Black: 30'/150'/375'
Silver: 45'/225'/562.5'
Gold: 60'/300'/750'
White: 75'/375'/937.5'

Quadrupedal reptiles with an extra pair of limbs on their backs as wings.

Physical resilience, physical strength, magical resistance

The "smaller" of the dragons (Red, Blue, Green, and Grey) are aggressive to anything that they see as a threat, which is mostly everything that moves. Black dragons are aggressive to anything and everything as they are demonic in nature. And Silver, Gold, and White dragons are only aggressive to things that threaten their territory.

Elemental breath
Claw slashing
Stomping
Biting

Tough scales
Size

(Color: Maximum flight speed in mph)
Red: 50mph
Blue: 75mph
Green: 100mph
Grey: 125mph
Black: 150mph
Silver: 225mph
Gold: 300mph
White: 375mph

Ground speed, instinctual in nature (except silver, gold, and white dragons, they're highly intelligent)

Roars
Growls
Clicks

Scales
Meat
Bones
Teeth
Leather

Sight

Taste

Mountains, valleys, deserts, snowy areas

Dragons lay eggs that take 3-5 years to hatch once laid. Black dragons are the exception to this, they are created by demonic energies twisting the life force of a normal dragon.

Small, medium, and big game
Black dragons don't require sustenance
Silver, Gold, and White dragons feed off of the world's energy, but will hunt leviathan class creatures at times for sport and for impressing mates.

Wyverns, Basilisks, Wyrms, Drakes

Power
Royalty