The earth rises in concert with your attack, driving sharp spikes of wood and stone up toward your foe even as your weapon slams down.

Encounter   ✦     Primal, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 1[W] + Strength modifier damage. Until the end of your next turn, the target's space and each square adjacent to it are filled with spikes. Any enemy that enters this spike-filled area or starts its turn there takes 5 damage. An enemy can take this damage only once per turn.

Update (2/17/2012)
Changed in December 2011 updates.

Published in Player's Handbook 2, page(s) 155.