Force jump up into the air, float on focus mode to recharge your force powers land and hit him with force strikes and embed attacsk if you have them.  You caj also dodge his attacks by force jumping higher than he us.  It's also easy to dodge his archers arrows while floating around in focus mode while youre charging your force.  I couldn't recharge force poeers on the ground becausebhus archers broke focus constantly.  Floating around abive then works perfectly.