Wrath of the Wild (4e Power)

Wrath of the Wild	Champion of the Ferine Attack 16
For those that confront you there is no escape, for the unfathomable might of the wild strikes tirelessly.
Encounter Primal, Martial, Weapon, Acid
Standard Action	Close burst 1
Target: Each enemy in burst
Attack: Strength Vs. AC
Hit: 1[W] + Strength modifier
Effect: The damage dealt by Wrath of the Wild can be physical damage or Acid damage as determined at the time of the attack. You may designate the specific damage type dealt by Wrath of the Wild for each creature struck by this power.
The damage dealt by Wrath of the Wild is increased to 2[W] + Strength modifier at the 21st level.
Special: Targets struck by Wrath of the Wild take your Wisdom modifier in Acid or physical damage at the start of your next turn following the use of Wrath of the Wild. A target critically struck by Wrath of the Wild is knocked prone.