Cloud Invocation

She has discovered that she can summon clouds in the form of creatures that aid her in battle or guide her.

Also, although at first glance it may seem that cloud creatures are cute and fluffy, If they need to, they can turn into rain or storm clouds, tornadoes or rainbows. Ozzy doesn't know how to do that yet, though. 

Another thing to keep in mind is that the cloud creatures are free spirits and that they help Ozzy for creating them and more or less follow her orders, some can go very much on their own and do whatever they want.