Since I have reached level 60, I started farming act 1 Inferno to get some gear.
My usual farm routine is to get five stacks of Nephalem Valor as quick as possible, and then kill elite / champion packs and finish with Warden & Butcher.
When getting my five stacks of Nephalem, I noticed that, occasionnaly, some packs give me a double stack of Nephalem Valor. Why is it so ?
If there is a specific way to get double stacks on pack, this could make farming a bit quicker :)