No more greyed out zone help from those higher level pals to get those named mobs. Oh yes, you know who you are! This is a major aggro change, and if you ever rely on higher level chars to get you through a dangerous zones, you are going to need this info.

Blackguard heralds the arrival of the aggro alteration, soon coming to the test server, on the SOE EQ2 forums.

We've seen a lot of threads recently about players exploiting aggro mechanics in groups in order to farm named creatures for their items. This has become a lot more prevalent as of late because of the enhancements we've been making to dungeon zones as far as loot is concerned. In response to this, we're making the following changes to Test over the next few days as a solution to your concerns

This is a great thread, with a lot of good info! Check it out here on the official EQ2 forums.