Bismarck.Arieludia said:
»That *** prelate door is going to be the death of me lol
I ithink you might be thinking of the wrong pair of gloves. You only need to get through that prelate door to get yourself some Carbuncle Mitts.
The other pair of gloves in question are Carbuncle's Cuffs.

Obtaining these involves the quest
Waking the Beast. You travel to each cloister and the six celestial avatar, they are a higher level than the original avatar battles for this quest. Each avatar is accompanied by four elementals of their perspective element. After that, you'll proceed to go to Full Moon Fountain where you'll take on Carbuncle Prime, he'll be accompanied by the six celestial avatars in a staggered sequence, and finally five Carbuncle Primes who'll use each Searing Light. There is a treasure pool of other items when the battlefield is cleared and the quest can only be repeated once per conquest tally.
At iLevel 119, it this shouldn't be too much of a problem to solo or even duo. The battle was originally intended for an alliance of 18 level 75 players. Furthermore, travel to the cloisters has been facilitated through homepoint warps. But as mentioned earlier, drop rate suffers when soloing.
Carbuncle Cuff: 40 run and I never seen drop in this battlefiels... Nothing...
Yeah the drops in that fight are based on the number of people participating, so it's rare to get anything at all when solo unfortunately.