Assault on the Broken Precipice

• Location: Northwestern Nagrand by Highmaul, nearest flightmaster is [npc=87395].
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• Rewards: [currency=823 amount=800]
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• Related achievements: Broke Back Precipice, History of Violence
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• Related Reputation: Items can drop for [faction=1711]
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• Related Garrison Invasion: Goren Invasion!
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• Related Loot: [item=119389] from [npc=87846], [item=119370] from [npc=87837], [item=119405] from [npc=87788]

[h3 toc=false]Strategy and Mob Percentages[/h3]
In addition to killing regular mobs, elites, and rare elites, you can use the blue crystal [npc=88064] to transform into an ogron ([spell=175766]) and smash piles for quest completion. Red crystals can also be looted for the [spell=175750] buff.

[toggler id=11 hidden]Mobs that increase progress % per kill (click to view)[/toggler][div id=11 hidden][pad][pad]

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Defeat - Rare Elite  (14% each)
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Durg Spinecrusher

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Bonebreaker

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Defeat Vignette  (16.7% each)
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Pit Slayer

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Defeat Small Enemies  (1% each)
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Sledgebasher

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Arcanist Earthsmasher

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Pit Slayer's Trophy

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Defeat Tier 1 Enemies  (4% each)
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Defiant Drudge

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Brokyo

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Vizier Dar'gud

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Dominating Drudge

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Broken Drudge

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Defeat - Elite  (7.7% each)
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Bloodbash Ogrechucker

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Bloodbash Breaker

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Slave-Grinder

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Destroy Trophy (4% each)

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Recover Artifacts 

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If you enter the area and don't get a progress bar, just keep killing guys. I had that happen to me, and after a few minutes I got the completion notice, so it was still counting them towards the goal.

While the mobs themselves don't actually give rep, they do drop gorian fragments and have a small chance of dropping highmaul relics, both of which can be turned into the Steamweedle Preservation Society. Not a bad way to farm rep if hunting down rares isn't your thing.