So the old system operated purely off of the number of kills you chained together. Your magic find and exp find are still boosted by chaining kills successfully, but the way it was measured on the stat sheet was inadequate. Pure chained kills. Kind of boring and it didn't really take a lot of things into consideration like difficulty or what kind of mobs you fought.

For this reason I came up with a combo rating system that rates every chain combo you perform. It will show on the battle statistics like every other statistic. Combo rating is the new maximum value used in each zone on your stat sheet's Conquest tab. This means killing rares and champions will yield higher ratings than killing commons. You will also be given a time-based bonus depending on how quickly you kill mobs.

In the end I think this will make the combo rating system much more interesting and pressure the player to push themselves to perform their best in combat.