I recently did this quest with a full group of very high level characters, and the boss fight took over 30 minutes to complete with all the respawning and rezzing. Even with full fire res, protection, and a wizard casting ooze puppet, anyone without evasion died relatively quickly and the living spells kept on breaking through the charms. We finally finished it, but does anyone else find the last fight a bit too difficult for a non-raid level 17 quest?