Cooking mastery gives a chance of multiple combines whilst cooking a recipe called Mass Cooking where you make 10 combines at a time each time it is triggered. The higher the mastery the more often it triggers.

This needs to be added to Alchemy Mastery. 

Take reagents. Pure Powder Reagent and Clear Liquid Reagent as an example. This are used extensively in pretty much every other alchemy recipe.

Let's take an example of Elixir of Detection. Takes 6 Pure Powder reagents per combine. So 6000 for a 1000 combine run. A lot of reagent!

To make reagents one combine at a time is simply ridiculous. It takes ONE HOUR 30 Mins to run 5000 combines at max time reduction to make approx 12k - 14k reagents. Sure can AFK but not the point.

Please add Mass combine to the Mastery section of Alchemy

Cheers