Persona 3 FES - Floor 85 boss: Fanatic Tower 

My fight against the boss on floor 85, Fanatic Tower. I'm not using guides and such, so I went in blind. Made a few silly mistakes, but nothing serious. This is my first night spent in this block. It's all so much easier than the previous month. I had trouble defeating Intrepid Knight and only just managed to complete Elizabeth's requests. This time I completed all the requests in one night!
I'm level 28
Yukari is level 26 (and bloody useless in this fight)
Akihiko is level 28
Mitsuru is level 27.
I quickly found out this boss reflects several types and doesn't appear to have any weaknesses. I did some damage using physical attacks with Yamatano-orochi while my companions knocked him down twice. Later on I switched to Take-Mikazuchi for his Zio nullification and used Elec Break so I could safely use Zionga. I didn't Recarm Yukari because she wasn't any help anyway. ^_^