Final Fantasy: Legend of the Crystals (ova)

Description: On a distant world where both magic and technology hold sway, where massive airships roam the skies, a young girl training in the use of summoning magic, Lena, and her sword-swinging friend Plitz, are charged with a lofty goal: to protect the Crystal of the Wind. The Crystal is a magical artifact which protects the peace and sanctity of the Tycoon Kingdom from an unknown evil force. However, when Pirates and the Tycoon Military, all of whom desire the Crystal, get involved, things quickly get complicated and violent.