To end the day, I bring you all:
Gurubashi: Cheater's Edition
The object here is to enter the arena from behind where there will be a hole larger enough for even a tauren. From there, just walk to the center, being sure to stay in the trench.
The chest should spawn right on top of the bump in the middle of the trench, use that bump as a ladder if you aren't close enough to open the chest.
I advise against hitting anyone from down here, get in and get out!
Original
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Revision 2: NO MOUND (for taller toons)
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--Like a machine,
~TheDipper