The Eldar society is divided into "Paths" each of which determines what they commit the current phase of their long LONG lives to. Following the Path of the Artisan for example means that you would be spending maybe decades if not centuries making pottery, jewelry etc. until you find yourself bored, and move onto a new path. The Path of the Seer and the Path of the Warrior are two different such paths, and while the Path of the Seer leads onto becoming a Seer (or if you become "lost" on the path, a Farseer), it is not directly connected to the Path of the Warrior (ei. the Aspect Warriors). Warlocks however are Eldar who walk the Path of the Seer, after having turned away from the Path of the Warrior.
Oh great, now I have to look into the treacherous Chaos Marines and will probably like them too. Could be a compromise between magic and sword swinging....Thank you!
Yeah, I found Thirianna was a much more interesting character than Korlandril was. Although I enjoyed Path of the Warrior just for the perspective of the Aspect Warriors.
Aren't Farseers the most powerful of casters and the most rare? I know they are important to their respective Craftworlds and to lose one would be devastating to that Craftworld. That's why they are always accompanied by warlocks whenever they go to battle.
Farseers are fairly rare, mainly because they have to become "lost" on their path, a progress which can take decades or centuries. Once you become "lost" on your path, you're stuck on it, you're committing the remainder of your entire life to this one profession. Which is also why they're so powerful, having thousands of years of practice and delving into the secrets of the warp to do so. It doesn't help their numbers that the Path of the Seer is already quite mystical and wierd in the eyes of normal Eldar, and so those who walk the Path in the first place is rather few.