Starting new magic paths during the game

[MaxWilson]

Micah's answer is thorough. The most common way to raise your magic paths, Skirmisher, is to use booster items like those listed at the back of the manual. It's cheaper than empowerment. Experience does NOT raise the paths on units although it does give them better precision--it's not like D&D where you get more powerful spells as an individual gains experience. The fact that Sauromancers can cast Drain Life and Augur Elders can't (without booster items) is an intrinsic feature of both unit types.

-Max