Legend League! Where you at?

Roll calls aside, need some help/advice/whatever the hell. Anyone have a clue what floor it is where power fizzing starts? It's total bullshit that it goes all the way up to that atrium right under the apartment floors. Forewarned is forearmed and all that.

Oh, and if there are any monster nests or something I should keep the hell away from. Walking into the beehive is not what I had planned for my week, thanks.