Dragon

Chubby Dragon
Chubby Dragon is a melee air unit. It doe little except eat.

Ancient Dragon
Ancient Dragon is a ranged air unit. And adult dragon with the ability to burn and stun its enemies.

Dragon of Time
Dragon of Time is a range air unit. It's the master of time.

Dragon of the Elements
Dragon of the Elements is a range air unit. Each head controls one of three elements: fire, ice, and poison.