Lizard Limbs
From AoP Wiki
Lizard Limbs is a possible Trait you can pick during character creation.
Positive Effect
The Trait adds a 40% chance of regenerating a random limb every 10 seconds. This effect stacks additively with the Autonomous Regeneration perk for a total of 80% chance!
Negative Effect
The Trait removes 5 Healing Rate, meaning you regenerate 5 less Health Points every 5 seconds passively.