I recently started farming this on my 5 druids in trinity form (feral, tree, 3xboomkin). The key is to space your toons out far enough from each other to where the puddles don't overlap, then you can simply heal through it. The first half the fight, i use the occassional wild growth, then I found that dropping my treants during the second half of the fight made it extremely easy, and I just dps like normal. I don't even use wild growth til the very end. When my dps and tree starts to get low on health, I cast Tranquility, and that's usually more than enough heals for the fight.

Currently, I can farm heroic UT Keep, Gundrak, and Drak'tharon by skipping the second boss. If anybody has any good strategies for this one with 5 druids, I'd love to hear that one.

I'm guessing Nexus should be pretty easy as well, i just haven't got around to trying it yet.

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Druids:
http://www.wowarmory.com/character-s...Hakkar&n=Larrÿ

Shammys:
http://www.wowarmory.com/character-s...kar&n=Zappyzap