Ayla is an ice elemental dragoness. She can freeze anything with her icy breath and she can cause a major blizzard that would probably turn the world into the second ice age. Ayla and Piper don't get a long to well because of Ayla's icy temper.
Piper is an Earth Elemental dragoness and it's her job to take care of the trees and plants well earth. She can't let dragons turn the earth into a giant snowball. So Piper and Ayla tend to fight quite a lot!