The Mothercrystals/Strategies

Strategy
Disclaimer: This is only one man's opinion.

Getting There

 * 1) Regardless of what anyone tells you, you do not need a party full of Rangers and Summoners to defeat these bosses. Albeit, they make the fight much easier, they are not essential.
 * 2) Either a Ranger, or someone with Ranger subbed is extremely useful for finding the Memory Receptacles on each floor. Otherwise you need to hunt and peck around using the The Vana'diel Atlas maps.
 * 3) If you get aggro on the first, second or third floor, pull the mob to a safe spot and fight it. Be wary of other aggro.
 * 4) At the beginning of the third floor, use Reraise items.
 * 5) The fourth floor is unique because the mobs are so hard and there is a zone you can run to.
 * 6) * If you get aggro run. If one of your party members gets aggro, flee first, fight later.
 * 7) * Before you head out, all mages should blink and stoneskin up. If you are a summoner or have summoner subbed (highly recommended for WHMs), summon Carbuncle. If you have a summoner, cast Garuda and have her use Aerial Armor. Also double check Reraise.
 * 8) * Attempt for as long as possible to avoid aggro, but once you do, sprint for the zone.
 * 9) *# Mea is easy. It's a short run. When in doubt, head Southeast.
 * 10) *# Dem is not very difficult if you don't get lost. When in doubt, follow the right wall. You should be able to avoid aggro at least until K-5, if not until J-6. Once there, you should be able to survive a sprint to the zone. If someone dies, be sure it isn't the WHM. Tractor and Raise as necessary. Remember flight before fight.
 * 11) *# Holla is the most difficult. I find the easiest way is to head west first. You can split mobs and avoid aggro pretty much until I-11. From there, it's a sprint to the zone. This is the zone where people are most likely to die. I like to stick to the right wall from I-11 to J-9, avoiding the area at J-10, it's a Northeasterly run. Then I like to sprint straight to north wall and follow the north wall to the zone. Again Tractor and Raise as necessary, and flight before fight.

Boss Fight

 * 1) Set up an Anima Order, the order in which the party members will use their Anima.
 * 2) Create Macros that say:
 * 3) * /p USING ANIMA NOW!! XXX go in 30 seconds.
 * 4) * /item "Psychoanima" 
 * 5) * /wait 10
 * 6) * /item "Hysteroanima" 
 * 7) Have mages and Rangers take up spots on different sets of stairs around the mob. Have the tank try to keep the boss in the center as best as possible.
 * 8) Hold off using your Anima until the boss is at 70% health. Then go. These should make the boss just stand there and look stupid. (Watch you anima use carefully. If it fails to trigger due to movement on your part or something, be sure to use it again).
 * 9) At 30-60% health, start using any applicable 2-Hour abilities.
 * 10) If you have a Ranger, save Eagle Eye Shot until the mob is under 10%. You want that to be the finishing blow.
 * 11) If the ... hits the fan and the mob is still up after all Animas and 2-Hours have been used, go to Plan B: /item "Terroanima"  followed by Elemental Seal + Bind. Then pray.