Proving Grounds Guide

Quick Rundown on Healing the Gold Level of Proving Grounds

1. When you first go in you will see a bunch of npc's standing around. Get yourself a lock rock from one of them, re-forge and re-spec if you need to.
2. Not sure about tanking and dpsing versions, but for healers, it is imperative that you dispel a debuff called "aqua bomb." If this thing is allowed to go off, it will do a LOT of aoe damage to your party. Even if you can heal through it, you will run out of mana quickly, since you can't use mana pots in Proving Grounds.
3. Track "Aqua Bomb" with healbot or whatever healing frames you happen to use. You might have to manually add the spell in healbot. Here is a picture of what your custom debuff window should look like. To add the custom debuff go to the Cure --->Custom tab and manually type in Aqua Bomb in the new debuff window and hit save. See screen bellow.
4. The bulk of the damage, at least in the half dozen times I've personally beat it, seems to be in waves #5, #6 and #9, #10 so try to have some healing cooldowns ready those.
5. Mana might be a problem so try to stay as efficient as possible by using your cheap stuff frequently to keep your party from getting so low on health that you are forced to spam the expensive stuff.

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 There you have it. Good luck and feel free to reply if you have any problems. Here is a video I made using the techniques explained in this post.