Dragons of the world of Ashan.

Well, I didn't say that I absolutely need crystalline dragons. But I think the game definitely lacks great dragons.

I'm generally in favor of a dragon-themed approach, meaning dragons should rule the world and occupy a corresponding position in the unit hierarchy. Their pantheon isn't as vast as the many gods in Greece or Rome, but there should be 4-5 supreme dragons. However, they don't descend to Earth themselves; they can take on a physical form, but their spirit is indestructible.