#2638 En el link que tu mismo colgaste en el #2617, en el apartado de partying, pone esto:
Solo Play
Solo play is the preferred choice of those short on time, and we intend to preserve the balance wherein adventurers can take on foes of the same rank unaided. Even as we work to further accentuate the uniqueness of each class, we will make it so that all classes are capable of ranking up via solo play.