Well, besides a little blip with inhabitning in the beginning and perhaps a poor choice of words later on (seriously, what kind of ancient goblin prophet says "uppity?

) it was fairly decent.
A few things though.
The speech seemed effective, and well written, but I would have liked to see more dissent and reaction from the other tribes, perhaps in the form of another tribe leader saying "what's in it for us" instead of the Prophet.
I just think hearing more voices would have made the story more natural feeling.