For those who might be curious on this encounter's difficulty... I just two boxed it with a 80 Shadowknight - 35 shielding, 90 avoidance, 300AA, 13k HP 3200 AC unbuffed with 2.0 and a 75 SHM - 10k mana/45AA. Slowed but not crippled my parse shows a whoppin 202 DPS put out by this guy, with a registered 100k HP. I just used Revile to hold aggro and Tigir's to slow the adds. Slowed, they put out 56 and 92 DPS. A very easy fight, should be easily soloable by a 'raid spec' character.