Impaling Critical (Feat)

Your critical hits can skewer your foes.

Prerequisites: BAB +11, Critical Focus (Feat), Weapon Specialization (Feat) with selected piercing melee weapon

Benefit: Whenever you score a critical hit with the selected piercing melee weapon, you may choose to impale your opponent on your weapon. While your opponent is impaled in this way, each time he starts his turn, you deal damage equal to a successful attack with the weapon. This damage is automatic, no hit-roll is required. Since no to-hit roll is made, this damage cannot crit. As an immediate action, you can pull your weapon out of your opponent.

Special: While your opponent is impaled, they cannot move outside of your threatened area, and if they take a move action to move or take a five foot step to move within your threatened area, they take automatic damage as above. Your opponent can spend a move action to pull your weapon out, ending the impalement. When the weapon comes out, your opponent takes automatic damage as above.

Special: While you impale your opponent with your weapon, you cannot use it to threaten and you cannot make bonus attacks or attacks of opportunity, and you must hold on to it. If you let go of the weapon, the impaled opponent no longer takes damage from the weapon at the start of his turn. If you have a second weapon in your other hand, that weapon may attack normally.

Special: You may make attacks in your turn only against your impaled foe with the piercing weapon you have impalad them with. These attacks are made against your impaled foe's touch AC for as long as you have them impaled. It's easy to hit an impaled foe, you just saw the weapon back and forth a bit....