I don't know if he'll go for it, or if he will even stick to his word, but I've tried.
Tactically, where do we all sit?
My Daily is gone, my item daily is spent, so I'm sitting on my encounter power that can daze for a turn on a hit, my racial that can grant a bonus to a skill or attack roll or a shift, and then basic attacks. I figure we'll be best off if I mostly use the one that grants a bonus to hit, if I hit. Other than that, I'll do my best to keep people alive, but I've only got two, so try not to get hurt!
As far as power choices go, I'm guessing this guy is a solo, so save ends effects are likely to be ineffective, and he's going to get two nova rounds. My only trick right now is an end of turn daze. If we have more than one, it's probably in our best interest to spread them out to try and keep him on the ropes if we can.