Failed many times until I figured out good teams. Nilou bloom team was too weak against 12-3b's giant snake thing, so I had to redo it just for that. Even if Dehya burst does decent damage and breaks frost shields quickly, her energy cost/regen/cooldowns are really atrocious. I'm surprised 12-3a frost churls charging into me didn't launch me into the sky and cause a falling death. It's not fixed - I had it happen again later. Note: Bloom team works on 12-3a. I heard you can use Bloom team on 12-3b if you use Nilou's burst to break the orbs and down the boss.
I was originally going to upload the entire Spiral Abyss but friend said just 12 is enough. So the equipment at the end shows characters I used for the other floors.
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