Heavenly Shield.

Name: Heavenly Shield

Requirements: A proper shield and armour. (The shield has to be very large and the armour has to be specialized in order to take the stance and withstand the shock from heavy blows without injury.) The stance takes a few seconds to enter and exit.

Description: Assume a defensive stance with your tower shield in front of you. Armour locks into place and digs into the ground. Allows hunter to withstand mighty blows, even greater than the protection a great shield normally offers.

Effects: Instead of merely protecting the hunter, this defensive stance stops the attack out flat. Even stopping or slowing a wyvern's charge. Of course, the hunter cannot move or attack while she is in this stance. Used primarily to protect comrades, and create openings for them to attack.

Alright, I like it. I say approved.