This was my main question; I probably could have been clearer. Where does it say that one hand is consumed in maintaining the grab? That makes sense, but from my reading, all you have to do is stay next to the guy, spend a minor action to maintain, and succeed on subsequent escape attempts. Otherwise you're free to do whatever you want.It seems to imply that one-handed Powers can be used; two-handed or two-weapon Powers cannot be used (one hand is busy grasping the foe); but what do spells count as? Do Wizards only need 1 free hand to work their magic? What about Warlocks and Clerics?
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...you can just as easily the guy in a leg lock or something while hacking away with a twohander.
is in my opinion very interesting question, though. The pin is gone, so it seems you actually need shackles + combat advantage if you want to restrain someone.grab, now what