Wraiths have a neat ability. "While defending, before the attacker rerolls, reroll up to [stable] dice."
I hadn't given it much thought when this was announced, because I was relatively new to the game, with limited experience and only a small pool of units to choose from. Now I'm realizing this has the potential to be crazy good - if I understand correctly. So does this kick in every time my opponent decides to reroll during an attack? Let's say a 9-tray unit of Berserkers rolls double hit on red, and blank on blue. They have two full rerolls. However, if they choose to reroll that blue, they know they'll likely lose the double hit because of the Wraiths' ability (that's the crazy cool mind game part). If the Uthuk player isn't happy with the first reroll, and wants to reroll again, does my Wraiths unit get to reroll [stable] number of dice again? I'm guessing the answer is "yes" because it's "while defending."