Really nice thing about the fort, especially regarding shamans, is that the giants are quite easy to slow, and then dmg mitigation is huge. If you find yourself a monk or warrior duo combo, you can shred through giants with next to no damage taken. Plus, no spell casters
[You must be logged in to view images. Log in or Register.] IIRC Gem oracles / Revenants hurt quite a bit. I'd say go to the fort at 30. Hillocks will be blue for a couple levels yet, and the tumps will still con blue / green at 40 =)
I'm very casual, but if you want a warrior partner for the kunark area, or whatever, message Telopen in game. I'm a lvl 40 warrior right now. Always looking for company.