RULES:
-I can only use Izanagi during battle.
-Use of other personas is not permitted outside of battle
-I cannot fuse away Izanagi
-Personas allowed in stock to be used for social links.
-The only party members that can fight are Yosuke, Chie, and Yukiko
-Izanagi-no-Okami is allowed only after the final boss.
Notes:
This fight starts off pretty simple, support with MC, Damage with the rest of the party members. Keep doing this until she does Shell of Denial Where all you can do is guard.
In the second phase, Marie blocks everything but Almighty moves. This isn't so bad considering my MC had Megidolaon and I picked up a lot of the breaker items in the dungeon. This allowed Yosuke, Yukiko and MC to deal massive damage while I let Chie use the elemental items because Chie doesn't have really good magic damage. Once MC ran out of SP I also had him use the item skills. Overall at this point of the game my team has become very strong so this fight was pretty easy.