The Four Symbols, are four mythological creatures appearing among the Chinese constellations along the ecliptic, and viewed as the guardians of the four cardinal directions.
They are the Azure Dragon of the East, the Vermilion Bird of the South, the White Tiger of the West, and the Black Tortoise(or Black Warrior) of the North.
According to the archaeological evidence, the concept of the Four Symbols may have existed as early as China’s Neolithic period (some 6,000 years ago).
Azure Dragon corresponds to the season of spring. Although Chinese dragons are commonly associated with water, the Azure Dragon is the exception, as its element is wood.
The White Tiger corresponds to the season of autumn. The White Tiger’s element is metal, and it was held to be the God of War.
The Black Tortoise corresponds to the season of winter. The element of the Black Tortoise is water, and this mythological creature is commonly associated with longevity and wisdom.
The Vermilion Bird corresponds to the season of summer. Interestingly, the Vermillion Bird has been considered to be identical to the phoenix.
During the Han Dynasty the "Wu Xin" School of thought gained predominance to the point that the Thinkers of the time wanted to explain everything through the "Wu Xin", thus arose the need for a fifth creature associated with Earth.
From this need was born the Fifth Beast, The Yellow Dragon of the Center.
The Yellow Dragon corresponds to the changing of the seasons.The element of the Yellow Dragon is earth and he is the zoomorphic incarnation of the Yellow Emperor, and is the center of the universe in Chinese religion and mythology.
With The Azure Dragon of the East represents Wood, the Vermilion Bird of the South represents Fire, the White Tiger of the West represents Metal, the Black Tortoise of the North represents Water and the Yellow Dragon of the Center represents Earth, the "Five Phases"of the Wu Xing are complete.
Well, in game we have the Azure Dragon and the Yellow Dragon...The Azure Dragon Unit corresponds perfectly to the Azure Dragon.The Yellow Dragon Unit are metal not earth... Just give her a horse. And boom, perfectly corresponds Yellow Dragon Unit to the Yellow Dragon.And for the others?
The Withe Tiger Unit... Maybe a Dual Sword Medium Infantry?(Remembering that the White Tiger is of the metal element
The Black Tortoise Unit... A Big Armoured War Wagon With Four Crossbowmen Inside.(Remembering that the Black Tortoise is of the water element
The Vermilion Bird Unit... A Fast Shock Chariot.(Remembering that the Vermilion Bird is of the fire element
What do you think of this? Do you think the other creatures deserve their own respective units?
What kind of Units do you think fit best with each Creature?