I think this is how I am going to change the Keen and Vorpal abilities for my campaigns. Let me know what you think. I was trying to go for the old super sharp epic movie feel like being able to cut easily through stone or steel and severing parts rather than just the head.
Keen Ability: This ability increases the critical threat range by 1 and subtracts five from the hardness of an item before determining damage.
Vorpal Ability: This ability increases the critical threat range by 1 and subtracts 10 from the hardness of an item before determining damage. If a critical is rolled, there is a chance that a body party is severed:
1. Hand
2. Arm (1-3 at elbow/4-6 at shoulder)
3. Foot
4. Leg (1-3 at Knee/4-6 at hip)
5. Torso (Make Fortitude save DC 10 plus damage dealt or be cut in half. If save is successful, you are not cut in half. If save fails, you die in 1d3 rounds.)
6. Head (1 Neck/2-3 Disfiguring such as ear, nose, scalp or major scar/4-5 Eye/6 Both Eyes) Special: Neck (Automatic death) only occurs on a natural 20.
Effect of Loss:
Hand: Loss of off-hand use. May still use Shield, but not off-hand weapons and may not retrieve or pick up items while weapon or item in remaining hand.
Arm: May not use shields and as above.
Foot: Speed Reduced to ¼. Lose Dex bonus to AC.
Leg: Speed reduced to hopping at 5 feet per round. Lose Dex bonus to AC and Reflex Saves.
Keen Ability: This ability increases the critical threat range by 1 and subtracts five from the hardness of an item before determining damage.
Vorpal Ability: This ability increases the critical threat range by 1 and subtracts 10 from the hardness of an item before determining damage. If a critical is rolled, there is a chance that a body party is severed:
1. Hand
2. Arm (1-3 at elbow/4-6 at shoulder)
3. Foot
4. Leg (1-3 at Knee/4-6 at hip)
5. Torso (Make Fortitude save DC 10 plus damage dealt or be cut in half. If save is successful, you are not cut in half. If save fails, you die in 1d3 rounds.)
6. Head (1 Neck/2-3 Disfiguring such as ear, nose, scalp or major scar/4-5 Eye/6 Both Eyes) Special: Neck (Automatic death) only occurs on a natural 20.
Effect of Loss:
Hand: Loss of off-hand use. May still use Shield, but not off-hand weapons and may not retrieve or pick up items while weapon or item in remaining hand.
Arm: May not use shields and as above.
Foot: Speed Reduced to ¼. Lose Dex bonus to AC.
Leg: Speed reduced to hopping at 5 feet per round. Lose Dex bonus to AC and Reflex Saves.