I kinda want to make up rules for these now, for each of the damage types…if that sounds interesting to folks? I was thinking of having the permanent injury depend on two factors, one, the type of damage that took them down, and two, the number of failed saving throws (3 being the max). I would love to hear feedback from GMs on the idea!
A d8 could also be used to determine the location of the injury, if that is relevant. (GMs could just pick and choose or go with the flow of description instead). 1 being the head, 2-3 the legs, 4-5 arms, 6-8 torso.
Now onto another staple of the genre...Piercing!
One failed saving throw: Deep Gouge. A small scar doesn’t do justice to the depth of damage from that blow that almost cost you everything.
- Legs: Stiff getting up, when standing from prone, reduce speed by 10ft.
- Arms: Chronic weakness, reduce carrying capacity by 15lbs
- Torso: Stitch in your chest, Disadvantage on saves against fatigue.
- Head: Mental gap, you forget a basic task, name or memory, GM discretion.
Two failed saving throws: Critical Injury. The deep wound hit an organ, joint or vital tendon, a constant invisible reminder of the encounter that slowed you down.
- Legs: Bad leg, -2 penalty on acrobatics or athletics checks.
- Arms: Busted elbow -1 damage on attack rolls with this arm.
- Torso: Never fully healed, Lose one HP per level.
- Head: same as with 1, but character also loose a single proficiency.
Three failed saving throws: Still In there (weapon fragment, bone chip wtv) The magic healed the wound around it, the surgeon said it had to stay...you carry with you physical evidence of your own mortality...and it hurts.
- Legs: Arrow in the knee, 10 feet less move speed.
- Arms; Limp and Useless, cannot use the arm.
- Torso: Inches from the heart, half HP from all healing, as your body fights constantly for survival.
- Head: characters lose access to a key ability or spell, GM discretion.
Bonus: whatever is stuck still in there could also give a minor bonus, iron might give a bonus saving against fey, a magic weapon fragment a sliver of its power, etc etc.