Still useful, at least. I've been using the JP site and it is pretty useful but sometimes I err on the side of laziness because reading Japanese is still an enormous pain in the ass (I am pretty sure I chose to keep studying this language because I enjoy languishing in futility). That said the JP version has users posting what setups they used so that's still more useful when planning fights, but either way.
Also, Shadow Creepers. That makes way more sense. I was thinking they were trying to call them Shadow Clippers. As per my MO, though, I like my name better though so will continue to use that.
Mostly posting this now because I'm planning things, writing things out helps, and I won't have the timebux to try it for another two hours. Think I'll be able to beat him regardless, but the mastery nets me 6 5* Fire orbs and 1 6* Black orb so want.
I need to off Bahamut before he uses Gigaflare and Petaflare twice each. If I deal enough damage in 3 turns the spells don't actually go off, so... does this mean successfully casting GF/PF, or just activating the charging phases? Unclear. I'll probably have to do this fight a second time for the mastery anyway after scouting out how much damage I do/take so I'll play around with this. He starts using Petaflare at low HP apparently, so worst case scenario I have to get him to low HP before his second Gigaflare use, and then kill him before his second Petaflare use. Complicating this, I need to off 8 shadow creepers for the mastery. They're weak to fire, and the event just handed me a MT Fire samurai skill (hereby referred to as "Flaming Weeaboo" because I cannot read the kanji), so that's in... Not sure how much HP they have, so maybe hone Quake to R3 (not enough wind orbs for Valefor to R3, which is the other, worse option) and have Faith on one of my WMs.
Bahamut also defends against breaks, so maybe sub out Gilgy for Faris (and throw her some eggs so she's at least L65)
In light of that, I suppose I'll go...
Seph (R5Reta, R3Flaming Weeabo)
Terra (R5Cheer, R3Quake) + Dualcast RM
Yuna (R2Shellga, R5Curaga)
Aerith (R2Protectga, R3Faith)
Faris (R5Tempo Furry, R2Armor Breakdown)
and basically holding off on going into the actual fight until I roll a Sentinel Grimiore / Stoneskin RW. Less optimal, but Lunatic High/Good Time would let me swap out Protectga/Shellga respectively for Strongwater (WM phys buff), making reta better.
Depending on how the fight goes, on my mastery attempt if I'm having trouble killing Bahamut quickly enough I could swap Terra for Gilgy and have him have Double Hit, and then use Strongwater instead of Faith, and then keep rolling until I get either Lunatic High or Good Time, Swap out the respective skill for Valefore, then try to blitz them down. Gilgamesh has an MT SB with the Partisan at least, so that will maybe make up for losing 4 total spell charges in the Quake-Valefor change.
If I'm having trouble getting the 8 Shadow Clippers, hone Faith again, roll until I get LH/GT, swap out the respective buff for Valefor.
If I'm having trouble beating the fight at all... well, see what's going horribly wrong and plan from there.
K that's the game plan. I'll see how this shit goes down.