Dante had very little time to react to the giant beast coming at 'her', and at first simple got out of way of the first attack this False God of an Orc made, only to be pushed back a bit from the air current of the swing. 

'She' had little choice, with 'her' avoidance of the first attack 'she' confirmed it was locked onto 'her' and no one else and switched from her Phantasmal Weapon to her Artifact Weapon to get the full set bonus from her equipment, highlighted by the fact 'her' name once against read 'Chiziru of the Holy Mirror'. Now in her 'Tank' set up she immediately used Samurai's Challenge to hold the agro on her.

From there 'she' used Helm Splitter and Whirlwind Slash back to back, to further give it a reason to stay focused on her. But something felt off about it. The damage 'she' had done looked to be about normal for a much weaker enemy then this appeared to be, and the impact of her strikes lacked the kind of resistance 'she'd' come to expect from other fleshy targets. 

Something was off with this Orc, even more so then the name and weapons would suggest.