On Persona 4 I'm up to the Nanako Dungeon and I can't seem to be able to make it past the fourth floor without the protagonist dying. I'll quickly sum up my four attempts at the dungeon.

1. Made it to the fourth floor and was killed by a shadow using Agi attacks on my when I was using a Persona who was weak against fire. So I died.
2. Second floor. Same result from the previous attempt. Killed by fire.
3. Second floor. I was going well. I had a Persona that reflected fire so I thought I was going well, and I was. The problem was that some bastard in my power grid must've triggered a black-out throughout 3 suburbs near me. At least I can't blame myself for this.
4. Third floor. While using the same tactic by reflecting fire I was doing pretty well. Then a shadow came along and pummelled me with Bufu attacks. Shame the Persona I was using was weak against ice. Dammit.