Fontaine's full Magic Charmix transformation!
Her power source changed from air to water. So she is a fairy of water but not all waters. Lakes, Seas, Puddles and Rain, Waterfalls, Rivers, Springs etc. Not bottled water or water from a tap! Her powers also have relations to water based creatures and in some way, pearls.
I love how she is pulling water from the puddle to create a waterfall.