Spirits of stone and soil rise in answer to your attack's call and knock down your foes.

Encounter   ✦     Primal, Weapon
Standard Action      Ranged weapon

Target: One creature

Attack: Wisdom vs. AC

Hit: 2[W] + 2d6 + Wisdom modifier damage, and the target and all enemies within 2 squares of it fall prone.

Published in Player's Handbook 3, page(s) 129.