User blog comment:PitchBlack696/Ceadeus/@comment-74.76.112.128-20110725011143/@comment-82.44.52.244-20110808204057

for me i just used full then mohran and a then kodachi LS to kill him the first time and i managed to repell him but the easiest thing to do is just get him to the main arena and keep attacking him use the dragonator and if you  fail the next time you do the quest he will still be there with same health you left him at which means you save time having to get him there and you can just about squeese two dragonator attacks on him