This enemy has high health but pathetic range and damage. Saionji Hitomi is able to serve as an enemy version of Tank Cat so using anything that is hard hitting like Salon Cat.
In Super Clash!! Kishidan!! Saionji Hitomi is at his highest magnification being at 1,600%, now making a threat to be with dealing 6,400 damage and a high health of 720,000!
He won't be a threat since he has low attack power, range, and health. Even at Super Clash!! Kishidan!!, his extremely low range makes it so he will only hit your meatshields and basically nothing else. He doesn't have enough damage to effectively kill meatshields in time with his long attack animation, so you can just spam all the ranged attackers or low-ranged attackers all you want until he is defeated.