Earth Shaker? Where is it in Snake Dance?

I know its in snake dance with that giant dude, but where abouts is that guy. Is there any other place i can get this elite skill. And what do do you think of this combo= Earth shacker followed by aftershock. W/E build with hammer mastery. I know low energy bar, but only used when at 10A and 20E? Thoughts?

http://www.xennon.co.uk/eliteskills/

Hmmm ... looks like Xennon doesn like leeching of his bandwidth and blocks direct image linking. Bastard!