any clue how to do this Anniversary Group Mission: Defending Knowledge mission
Having an Enchanter along made it easy. Everything's mezzable. My wife (monk) and I (enchanter) did it using the paladin's blessing which turned out to be 5-6 tough dorfs who started out guarding the entry to PoK. I buffed them, and then mezzed everything, and she trained one on the dorfs. We had a really easy time of it, and got all the bonuses the first time we tried it.
IIRC, one of the mobs from Tactics was a rogue who seemed to spawn (stealth?) near where the dorfs originally spawned, and we had a couple mobs attack the centaur before I noticed them, but he's tough too.
The dorfs do regenerate slowly. If you're having trouble, simply wait to blow the horn for the next round.
Without an enchanter, I'm guessing the first and last waves would be the hardest. The first wave was a lot of mobs(12?), and the last was 4 micro-bosses.
The bonus item awarded in the chest (don't miss it as it's not listed as a step in the quest) is ludicrously good!