This was different, Joan had never fought agaisn't such an oppenent. She began to think of ways to kill her, yes there was her Noble Phantasm which probably would kill her but Joan would also knew that after using her own attack she would die as well. Maybe if she could do engough damage her oppenent would run out of mana. Joan ignored the witch attack, her magic resistance was so even the most powerful magic users couldn't hurt her. Her magic resistance though didn't cancel attack but just made it so that Joan wouldn't be affected by it, as if she was avoiding it. Joan would attempt to slice and dice the witch several times.