In my opinion, Brandon Sanderson is one of the best fantasy world-builders out there today. The magic system here is unique (as in seeming all Sanderson's oeuvre): everyone has a "BioChromatic Breath," a single bit of magic capability, and that Breath can be given to others. If one accumulates enough Breath various powers are granted, from perfect pitch to agelessness to animating normally inanimate objects (such as rope and cloth). Magic also requires color; the more difficult and powerful the spell the more color is drained from nearby objects—prisoners with enough Breath are kept in dull grey cells preventing any sorcery.
Coupled with this fascinating wizarding system is a story of pending war between neighboring lands and intrigue galore. Sanderson does an excellent job of hiding the twists in plain sight and disguising who the heroes and villains actually are. Throw in assassins, gods that live amongst the people, a talking sword, and a healthy dose of humor and you have Warbreaker, the nearly perfect fantasy novel.
There were great advantages to being unimportant.