From LSWiki

Aperture: Empyrean

This aperture focuses on the predominant medium for sunlight: the sky. It enables one to fly and to attack from a distance with enchanted arrows, as well as enhancing one's lens with a rainbow spectrum.

Primary Skill  : sky fieldcraft

• Tier 1  : access to the Flight volition, lesser flight and archery specialty access
• Tier 2  : access to the Horizon volition, major flight and archery specialty access
• Tier 3  : access to the Rainbow volition, greater flight and archery specialty access