Skillbar is impossible too say, it all depends on personal prefrences. As for skills it also depends, always try to hex your enemy. If hes running use freezing strike to slow him down, hate to bring him to you. Try to shield bash to interupt his skills if they are long casts. You can also sting him. When whoever you are fighting have gotten you hp down a bit use touch of death, oh and ofcorse whenever lightning strike is avalible.... use it.