What's important for suggestions like these are not numbers, but concepts / generalizations of what the numbers could or should be. Just throwing that out there.
For these kinds of things, any numbers posted are typically off the mark by a good amount, and require further fine-tuning to reach a proper balance.
As far as the skills themselves go, I agree with some, disagree with others. The Shatter skill is..interesting, but I'm not sure if we can do that properly. I kinda like the idea, but I'm not sure if I'd actually place that on Berserker--I think I'd prefer to add it to another class if I were to add it.
One thing I definitely am not interested in is adding pets to the class. I see where you are coming from with it, but I feel as though that makes them to "beastmaster / beastlord" esque. In all honesty, I feel as though your Berserker is half Berserker, half Beastlord. Definitely not a bad thing, but it's just different than what I would do things.