Heavenly Tempest

Heavenly Tempest (天衝裂空撃) is an arte exclusive to Emil Castagnier. Even though this arcane arte relates to the base arte Tempest, Emil does not learn Tempest in the game, might be meaning that it is not an upgraded form.

Arte Description and History
When using the arte, Emil slashes forward twice while in the air, then somersaults in the air while his sword is outward, slashing the enemies multiple times while airborne. This arte is powerful but sometimes misses foes because of its gained distance after the 2 slashes.

Escort Titles
Tales of Symphonia: Dawn of the New World - Emil Castagnier (Heavenly Tempest)

Tales of Symphonia: Dawn of the New World
Localized Description: "Arcane: Fierce thrusts in midair followed by a vertical spin attack."