Shield of the Landscape

Level: Perfected Map 1
Range: 100 feet
Area: 20' Radius, Centred on Caster
Duration: 1 Minute
Spell Resistance: No
Save: None
Metautterances: Extend

You cause the ground to alter its basic form, creating cover for you allies.
All allies (including you) in the area gain 20% concealment vs Ranged attacks.