I'd probably have just gone and hit the nightwalker and withered it down, mostly just to make the raid on the refuge futile.

An invoker with availability to a/b/s, invoker shields and anthem of resistance? What did you expect to do? Not to mention neurological disruption, vibrato and the potential for grand nocturne.

There's a fine line between courageous and stupidity. I think this one crossed over to stupidity.