Quote Originally Posted by Spiryt View Post
Power name suggest some more or less supernatural bind with earth, and all, so I guess one just should know if it can be anything you can stand on, or just natural ground, for example.
Oh, it isn't meant to be supernatural at all. And even if it is, perhaps slightly, then it is more coming out of the dwarf themselves rather than the Earth.

To be honest I kind of pictured them grunting and shouting while doing their little "powering up", reminiscent of typical shounen anime heroes. Just for a moment, but it was a hilarious image.