i used the penned area (the half-circle fence area), let the bandits or soldiers and my Creature and Demon (i was at lvl 23 [pre-Battle tower conquest and a little Orobas Fjord exploration]) attack it, i'd stay in the penned area and snipe him- when he'd come after me, i'd unleash a quick 1000 Strikes before jumping out of the pen- and it's follow me back out.
rinse, repeat.
