Was the Dnc with Gob while doing this. Used Aeneas/TP Bonus and did have Max JP on Dnc. I don't think Max is necessary, but 1200 is def nice to be able to have 9 FMs, could probably get away with 7 FMs through proper Presto use between Rudras.
Honestly, I think depending upon your group, you could cut out a lot of the Att buffs for the Dnc. Sure, they add extra dmg to the Rudra's, but ya still gotta do Rudra's x2 for double dark to kill it.
Basically the fight went like this, from the Dnc perspective.
1--Go in. Dnc does NFR -> RF to get lotsa TP. Other members would do buffs, Smn did Howl/TP Bonus, Geo did Indi-Dex/Glory/Ecliptic Geo-Fury, Whm did Auspice/Boost-Dex.
2--Pld and Dnc run in to frog. Pld holds it, while Dnc builds up Steps/FMs (would do until lvl 10 Box Step, probably don't need it that high though, as long as you have max FMs). Smn does Apogee Lullaby as Sch does Aero -> Nocto -> Grav.
3--Then the Dnc slaughters it with Climactic Flourish Rudra -> Step/RF -> Rudra. Can cut out the Step betweens Rudras depending on gear and how many FMs you can carry. And the Frog just dies.
Our runs were usually around 2.5min doing this strat, but since we spent extra time buffing with buffs that ultimately weren't needed, I think you could honestly get runs down to as fast as 1min... And no 2hrs necessary. I think other jobs could work similarly; however, Dnc seems to really
flourish here. ;)
Also, if your buffs/gear are strong, I think you could have the dnc go /sam and do Sekkanoki -> Evis -> CF -> Rudra x2 to kill the frog. Aero -> Nocto was very nice though in adding that extra step to the skillchains for the darkness damage. Anyways, the one time I tried this got it down to 8% health; however, our Idris Geo mule was accidentally not using Idris lol :x
Edit: Also, Acc requirements seem very low for this fight. I think you could cap with 1200 and maybe even less.