X's Knife BC (Requiem of Sin) Strategy?

[ikariffxi]

I've never done the X's Knife BC and will be doing it next week for the first time. I was wondering if it will even be feasible for my setup, and if so, what jobs should everyone go as and what is the general way to win? I'm a bit worried because we have no BLMs. I'd also like to know if you think it is possible with only the first three on the following list:

Setup:
1: THF MNK NIN or BRD (possibly WHM RNG or WAR also)
2: SCH WHM BRD PLD NIN
3: SCH WHM

The next two are maybe/hopefully but I'm not positive:
4: NIN RDM
5: SAM

Can anyone shed some light on possibly winning with this setup, and how to do it?

[Dammerung]

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[Loren]

Many varieties of 5-6 member parties can clear it, but you'll still wipe incredibly fast if you don't have Elemental Seal Sleepga (preferably 2 or more). Clearing it with a smaller party will depend on sudden magical damage (BLM/RDM/SMN 2hr).

[Slott]

sleepga is completely unnecessary. The mithras are incredibly easy to kite. You should be fine with Thf/ SCH / SCH. Kite the mithras with the thief while sch do the damage. As long as the sch aren't retards and stand still while mithras are charging them, you'll be fine. We do X > Z > Z's Wyvern, Y > X's pet. Elemental seal makes it easier but not necessary. You may want to consider killing the wyvern first, because it will cast cures if kited near the mithras being killed. You can even kill the wyvern first, just know that it will repop after 15 minutes have passed since it's been summoned