Diablo 3 - Monster Power, the Introduction

The team at Blizzard has penned a blog post about monsters, the design philosophy as well as the mechanics system that is headed into the game with the 1.05 patch.

The armies of the Burning Hells are about to become a lot more hellacious. In patch 1.0.5, we'll be introducing Monster Power, a new system designed to give players more control over how challenging enemies are in each difficulty setting. Similar to the "Players X" command in Diablo II, Monster Power gives Diablo III players the option to increase the health and damage of monsters according to different "power levels" -- and in return, they'll receive scaling bonuses to their adventure stats (including experience, Magic Find, and Gold Find) as well as more drops.

To learn more about this, and to learn how to set monster power level, please go here.