I’ve been playing a Shaman in Warhammer Online during beta on a regular basis and find the mechanic they use to encourage both healing and damage dealing to be entertaining. How it works is that basically the more damage you do, the more effective your healing spells become and the more you heal your friends, the more powerful your attack skills become. Therefore, the system encourages you to play the balance of damage and healing. No longer are the healers getting yelled at for attacking. It’s all part of the design and I find it quite fun.
Now along comes the Rune-keeper in Lord of the Rings Online. This is one of the new classes coming out with the Mines of Moria expansion. The thing that caught my eye here is a system called Attunement. The Rune-keeper is also a healer/damage dealing hybrid like the Shaman, but in this case Turbine has appeared to flip the design over. The more damage you do, the better you get at doing damage. The more healing you do, the better you get at healing. It seems to actually discourage you from filling both roles. Instead, I guess you must pick one role or the other before you start the fight. I can’t tell at this point if one will be more fun than the other but I plan to create a Rune-keeper when the expansion launches to test the class. My gut tells me the Shaman will be more fun, but I could be wrong.