Ah, I guess I just got too flustered and didn't realize I could escape!
As for controls, something on the right side of the keyboard for attacks is definitely good so that it's not awkward with WASD. I'm on a macbook and I notice there is no right-ctrl key. On my keyboard right-shift and enter/return would seem like natural choices, but I don't know if there will be a combo that works for all keyboards!