This fight involves 1 Snoll Tzar bomb boss. This boss is a bit...well...tricky. You are given 45 seconds (yes...seconds -_-; ) to defeat the bomb, similar to the timb bomb BCNM. The bomb will grow in size 3 times (long time FF fans should find that familiar LOL) before it explodes. And whether you die to that explosion or not, you will be expelled from the BC and the fight fails. Therefore you need to do mucho damage and FAST! When I went, we had a PT config of RNG,SAM,RDM,RDM,RDM,SMN. RNG had a SAM sub, while SAM subbed RNG and both the attackers gained TP to 100% before entering BC, or meditate to 300%. We also brought along Hi-reraiser potion since we don't have a WHM. Once in the BC, do the necessary buffs. At the start, RNG n SAM spams as many Sidewinders as possible, and the 3 RDMs chainspell Fire2, SMN use Ifrit Astral Flow. If anyone has Shu-Meyu Salt item, this would be a good time to use it if you think you can win the battle. The Salt will increase the time limit by 15 seconds.
EDIT: Monks are also suggested by building up attk, and using Chi Blast on the bomb.
If (touch wood) in the event, you failed the BC and survive, you will be booted out of the BC. Also you will have a status effect of Slip where you lose 32HP per 3 seconds. If you have very low HP remaining, you may die off. If you already died, dun reraise yourself too quickly.