if you know when to attack him this battle is won, but it can take a bit of time getting used to this, i bet him on lvl58, hard but if you know the stated above you'll be fine. Make sure you have aeroga on yourself at all times and heal yourself plenty of times to if nessesary. make sure you also take off all your combo pluses because he will disappear and counter after your third hit. also, have only 2 fighting abilities on, ars arcanum, and strike raid. Ars because its great and can be used if he uses algamine on you(big flame thing), and strike raid because of sin harvest(move that kills you), so you can strike him from afar and so he can't use it, and you need your item list with plenty of elixers if he does strike you with sin harvest. good luck!