Death's Bounty
Druid Attack 9
You strike at your enemy with the fury of winter's hunter, and the place of that enemy's death becomes a patch of greenery.
Ranged 10
Target: One creature
Attack: Wisdom vs. Fortitude
Hit: 2d10 + Wisdom modifier cold and necrotic damage.
Miss: Half damage.
Effect: When the target drops to 0 hit points, a zone of greenery appears in a burst 2 centered on the target. The zone lasts until the end of the encounter. The zone is difficult terrain, and any creature that ends its turn there is immobilized until it escapes (the zone uses your defenses when the creature tries to escape).
Death's Bounty is a 9th level Druid daily power. It creates a zone of greenery that immobilizes creatures. [PrP:44]