Nephalem Valor

Diablo III Barbarian Demon Hunter Monk Witch Doctor Wizard Crusader Follower Armory Difficulty Levels Monster Power Special Effects Experience Gain Paragon Item Rarity Magic Find Gold Find Nephalem Valor Nephalem Valor, or NV is sometimes also referred to as "stacks" or "NV Stacks" because you can stack the effect up to 5 times. 5 happens to be the magic number, regarding quite a few things in Diablo III. In order to have ANY possibility of a Keywarden to drop a key or Infernal Machine plans, or any of the Uberquest bosses to have a chance at dropping a body part for making a Hellfire Ring, you MUST have 5 NV stacks. The Monster Power level of the game also affects the drop chance, but without 5 NV, the chance is always ZERO. With MP0, your chance to get keys or body parts is 5%. With MP1, your chance becomes 10%. With each increase in MP level after 1, you gain another 10% chance for keys or body parts, so long as you have 5 NV at the time of the drop. This means that at MP10, there is 100% chance to get the special drop from those bosses. Nephalem Valor also gives other bonuses in gameplay. Each stack grants you 30 minutes of +15% goldfind, +15% magic find, and +15% experience gain. Nephalem Valor bonuses can exceed the 300% gold/mf cap and is applied multiplicatively, rather than additively. You gain 1 NV stack for completing events, major act quests, killing bosses (not unique, just rare), and killing champion packs. Each time you gain an NV stack, provided that your previous bonus has NOT expired, you will reset the timer back to 30 minutes til expiration.