In the video above I cover how to quickly farm the Key of Destruction in Act 1 for the Infernal Machine. Pretty simple to farm, just a few things to remember.
Monster Power level is important when farming these keys. Monster Power 10 guarantees a key drop, while at the lower Monster Power levels not so much. I usually farm at Monster Power 5 or 6 since it seems to be where I can quickly farm these.
5 stacks of Nephalem Valor is a must for the keys to have a chance to drop. Make sure to get 5 stacks first or you are just wasting your time.
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