Anniversary is 4 melees to kill. Punching someone without shield and him not dying is terrible though. It should be 2 punches to get rid of the shields and 1 to kill someone without shields.
Unless you have the Hulk Smash armour ability which converts the user's shields into enhanced melee damage. 1 hit KO with full shields at the cost of full shield depletion and a 10 second delay to user's shield's recharging.
Make it happen 343!