Originally Posted by
VinoeWhines
One thing you can do is lay down some glitterdust traps before engaging, then fire away about a few feet back and after lay another trap and fire away.
This will cause an AOE blindness and allow you to volley out several shots, getting sneak attack. Make sure to periodically lay another trap to keep the glitterdust AOE going, maybe three total traps to dispatch group. Summon a pet to draw some aggro also before fighting, maybe an archon or Summon pet IV Djinn, etc. they have slight evasion type defense. LGS Ooze can help, even heroic ones(won't turn to Reapers when destroyed).