[quote=@EWillden]
I know why the goblin was probably removed from his tribe though. My theory is that the chief was scared of Drizzak and his prowess fearing he might overthrow him, thus found a excuse to banish him and did so. 
[/quote]

I am not too sure, throwing out a strong alchemist would not be a wise decision.
Though I can somewhat see it, if the chieftain was scared of Drizzak taking over.

But I think it's something else.