Hey guys this isn't official, but I skimmed through an article at incgamers regarding datamined info from patch 15 about the possible solution for the "Magic find system".
Before patch 15, this was the tooltip of the buff that we get after killing Elites:
Defeating an Elite pack has increased your Magic Find and Gold Find.
Here’s how it looks now:
Defeating an Elite pack has increased your Magic Find and Gold Find. This effect ends if you change skills.
So this basically reward you with gold- and magic find after consecutively defeating Elite packs of mobs with the same set of skills. Your magic- and gold find will stack up, but after you swap your skills, your "elite mob gold- and magic find" drops to zero again.
This might be the solution for the so called "Nephalem Valor" system.
I for one would adore this solution if it turns out to be official!
Could someone please explain this "Nephalem Valor" for me? Is it the regular buff from the mf shrine?
Well we don't know for sure yet. It only states:
Elite/Champion Magic Find Change
Nephalem Valor - Now resets when skills are switched
No, I don't think it's from a shrine, it might be some sort of buff you get from defeating consecutive Elite mobs with the exact same skill set (as mentioned in the OP). But we don't know how it works yet. But that datamined info from incgamers seems like a good indication that this is the way the system might work.