A thicket of vines, plants, and tough shrubs erupts as if from nowhere to clutch at your foes.

Encounter   ✦     Primal, Zone
Minor Action      Area burst 1 within 10 squares (burst 2 at 11th level and burst 3 at 21st level)

Effect: The burst creates a zone that lasts until the end of the encounter. The zone is difficult terrain for all creatures except you. You can dismiss the zone as a minor action.

Published in Heroes of the Feywild, page(s) 70.