We had our first tries with Twin Valkyr hard yesterday. We've following tankspot's strategy fairly closely, everyone in the middle with dark aura, using 4 ball catchers. So far it works: light shield goes down pretty easily (obviously), vortexes are managed without much problem and the raid is kept alive (and it's nice to break 10k hps as resto drood from time to time). Those are not the issue
However, we can't bring the dark shield down. We pop bloodlust (obviously), we've tried to stand close to the white portal so ranged can swith easily, and even then we couldn't DPS it fast enough (and that brought it's own problems too). Do you have any ideas abot what are we doing wrong? Any tricks you'd like to share?