Is there any rule for loss of a limb, like an arm or a leg?
From the forum FAQ, if desired:
"How do you disarm someone? The writers purposefully left out disarming as a basic option (although some powers like 'Exorcism of Steel' allow it). However, when an enemy is defeated you can describe them as disarmed (or crippled, subdued, unconscious, pinned, tied up, etc.) instead of slain (addressed in WotC’s Podcast #29)"
what a character does to recover lost an arm?
Following the above paradigm, 'Raise Dead' (renamed for flavor if desired). Or 'Remove Affliction' (DM's call).
January 10, 2013 1:43 PM PST
I think in Dragon#400 they reprinted a tongue-in-cheek article or two on the subject that may amuse, but certainly no real rules