The fact that the Imp Shaman is using healing on himself, means that he is NOT indestructible.
I do remember that the Imp Shaman did cause me to reload about 2-3 times before i found his weaknesses. Try to use diffent weapons (especially those that does either bone, shadow, or some other magical damage along with the normal damage), try to use different spells against him, and note if they do some damage to him, or not (or if you have "know creature" as a skill you can see what his weaknesses are)
You can also try to set your game difficulty down until you are past the Shaman (this will only work if you are NOT playing in Hardcore mode - And if you are playing in hardcore mode, expect some of the more powerful creatures to seem indestructible).
I will in the meantime see if i can find my old act 2 saves and look what his weaknesses are).
I dont recall that the chief's son stopped the fight, if i remember correctly, he only appeared afterwards.
Last edited by Lady_Rain; 06/09/04 12:21 PM.