I called it physical suspension because it sounded cool really. Basically, the idea is you gain defences etc. and you just stay put and make sure nothing gets past. As long as you don't move, it works out fine. So, its Sustain: Move, but if you swap your standard for a move, it still cancels, as the point is you stand still. I think I shall add this as well as an immunity to push/pull/slide, as the idea is you just stand there and own crap.