In this guide, you will find how to get a 4th Ingredient Slot for Necromancy in Spellforce Conquest Of Eo. Go through the guide and follow the simple steps to get it.
The first thing you will need to do is head into your Grimoire book and navigate to the Necromancy spell page. There will be a bunch of challenges, and you need to unlock and complete the fourth one which will give you access to a special room called the Soul Well. You will unlock the fourth ingredient, Necromancy. It will make some of the tier 3 units easier.