The combat system. No not is WASD, but is the better XD.

The combat system in 9Dragons was designed to be pretty different to
any other MMO. Usually in an MMO you can just click on the monster
opposing you and let the stats package take care of the rest. In fact
in the early MMO’s like Everquest, I often went off to make a cup of
tea while my character fought the monster. In the later games it has
got a little more interactive with skills or buff buttons to press to
use special abilities. This adds a little more depth but in no way is
it like actually controlling your character as he fights. Of course in
an MMO you can’t use console type controls or a game pad because the
number of different connections and configurations would mean that
those with the fastest ping times would have an unfair advantage over
everyone else. So in 9Dragons the combat system has been cleverly
designed to be both fair and involving.