I have found mages to be rather easy to fight. With a 40 yard judgement, and Avenging Shield.
I start a mage fight like this AS>HoJ>HOR>(AS if proced)Judge if AS didnt
I also Torrent just as HOJ wears off to silence them longer. If they iceblock then I move behind them so when they blink I can judgement or Avenging Shield them when they try to invis.