[Endoperez]

There are some interesting booster choices in there. As an example, Air has two boosters at Constr. 4 that take Air 3: Bag of Winds and Winged Helmet. Forging those, with a mercenary if needed, is all you need to be able to do more Air boosters on your own. Trading for one Air booster or getting lucky in randoms can have a huge effect on your game. This is especially well seen with Arcoscephale's Mystics.

I like doing Rainbow mages around the boosters they can make. They open up interesting options for many nations, and give you access to almost all multi-path items and spells.