What units to use as games goes on

[DGDobrev]

The race of the item plays no part. It simply shows which race created the item, kinda spicing it up

However, regardless of the race, make sure you buy every item in the game and get Neatness lvl 3. For the price of 27 mind runes and 6 magic runes you will lay your hands on a ton of crystals and runes (I've reached results of more than 20 of each in my last mage game). Items of lvl 4 and 5 usually provide a lot of crystals and runes, so be on the lookout for such items later on. Items lvl 1-3 provide only crystals, but those will help you scribe a lot of spells in the spellbook regardless of the class.