My Runepriest has the Word of Binding power, and is using a massive magic hammer with a reach 2. The weapon itself isn't in the book, but the concept is the same as a spear or polearm. My DM just decided to give it reach 2 since it was described as having a 7 ft. handle.
The Word of Binding power states:
Hit: Strength modifier damage, and the target is immobilized until the end of your next turn or until you aren't adjacent to it.
If I were to use this power while standing 2 squares away, and were to hit him with my hammer, would he be immobilised? Or to restate the question: If I was never adjacent to the target, does the target become immobilized, and stay immobilized as long as he is within reach of my weapon? Or would the power fail as soon as it started? Or am I missing something?