Have Galka, Elvaan, or Hume enter so you don't have to kill mage fomors
On floors 1 and 2, you can only pick one of the three chests
You can take all chests on floor 3
1st Floor: 10 Fomors
~4,000 HPs
Carefully pull two formor of the same race as the person who first entered
Sleep-nuke the correct two fomor: Vortex opens after the first, chests appear after the second
Sleep any adds, be careful of blood agro
Take the Item chest and go up
2nd Floor: 8 Treants
Chests appear when everything is dead
Kill leafless Treant to open vortex, go up
3rd Floor: 7 Mimics, 3 Chests
Go straight to vortex to check the box closest to vortex first, then check the other chests starting with the farthest ones
Have 2 people stay more than 23' away while the 3rd checks the chest (23' is too far away to be drawn in)
For the first mimic to open the vortex, BRD sleeps while BLM+RDM two-hour (Chainspell+Drain is very MP efficient) and nuke it down (Lullaby sticks, Sleep doesn't)
For the remaining mimics, one of the people out of range uses ranged attack to pull hate
Open all chests and go up
4th Floor: 24 Elementals (3 of each element)
Elementals of the same type will link to each other from anywhere in the zone
Pull the 3 corresponding to the day you entered this floor past vortex to avoid magic agro
Sleep-nuke
Continue killing extra elementals as you have time, then exit