There is an exploit on the fractal where it turns you into a dolphin. There is a hole in the top of the cave that you can swim out and skip all of the mobs entirely. It only takes one person to swim all the way to the next checkpoint then everyone dies and goes to the checkpoint to fight the boss. Makes this fractal trivial. Discovered it by accident by thinking the hole in the cave was actually the way I was supposed to go… =/