ChaosOS
Legend
What I'd suggest is come up with specific types of injuries (Been reading through Savage Worlds recently, they have a pretty good injury table) that they can draw from. Final state, rather than death, simply represents something that "Healed Wrong", without necessarily being strictly worse than the "it got worse" stage. Example Broken Leg
Cured <- Leg broken: Char is slowed <-> Leg is really bad: Char is immobilized -> Final state: -1 (or -2 if you're feeling extra harsh) to speed.
Only advanced magic (Paragon tier ritual) can restore the injury. The character will forever remember the injury, since it's a permanent debuff, but it's also not so nasty that people will lose characters. Plus, I'm a firm believer in a fate worse than death, and you can torture your players as they see their characters permanently weakened by the injuries they accumulate.
Other basic ideas for the permanent penalties for things that "Heal wrong"
Head wounds: Randomly choose Int/Wis/Cha. End state is a permanent penalty to relevant ability and skill checks
Arm wounds: Penalty to attack rolls/losing magic item slots (Not the items, just the ability to wear them)
Torso: Penalty to healing surge value
Cured <- Leg broken: Char is slowed <-> Leg is really bad: Char is immobilized -> Final state: -1 (or -2 if you're feeling extra harsh) to speed.
Only advanced magic (Paragon tier ritual) can restore the injury. The character will forever remember the injury, since it's a permanent debuff, but it's also not so nasty that people will lose characters. Plus, I'm a firm believer in a fate worse than death, and you can torture your players as they see their characters permanently weakened by the injuries they accumulate.
Other basic ideas for the permanent penalties for things that "Heal wrong"
Head wounds: Randomly choose Int/Wis/Cha. End state is a permanent penalty to relevant ability and skill checks
Arm wounds: Penalty to attack rolls/losing magic item slots (Not the items, just the ability to wear them)
Torso: Penalty to healing surge value