Yeah, I have no fuckin idea how they're dealing with the MC2 shop. Like, only half of the characters with MC2s are available there and there isn't a whole lot of rhyme or reason to it.
Honestly though, since you have yell, the difference between L80 and L65 is not as crushingly bad as the difference from L65 to L80.
Also worth pointing out, when the Deep Dungeon opens up again, the 3rd battle in each area has a blank MC2 for you to pick up as well. Thanks to this and the Gysahl Greens shop I have like 5 blank MC2s floating around that I'm holding onto.
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Bahamut is stupid. If I don't have power breakdown, I die to his MT attacks that he likes to spam. If I don't have magic Breakdown, Flare OHKOs even when Shelled. If I don't have Armor Breakdown, I don't get mastery. Mmmmmph.No matter what improvements I make, I have a feeling a large chunk of my day is going to be S/Ling hoping for perfect RNG.
Ramza (Power Breakdown, Magic Breakdown), Shellga SB Armor, ~4000 damage a hit buffed
Zack (Indoor Spell ~5000dmg, R5 Aera Strike ~9500 dmg),
Bartz (R4 Aera Strike, R4 Aera Strike), Weakness damage 1.2x, ~8100 dmg buffed
Mog (Break Fever, Curaga)
Aeris (Protectga, Curaja)
SG RW
The only real tweaks I can make mid fight are saving SG for when he transitions to Weak and Very Weak phases (he always casts Megaflare here), and having Break Fever active when SG isn't up. Shellga is on Ramza mostly because his SB deals the least damage, and Throw Stone at the wrong time actually has massively screwed me up by delaying Megaflare until after SG wore off. >_< I'm kinda tempted to swap out Curaga for Haste, in part because by the end of the fight no amount of healing is going to save me, and having Zack/Bartz hasted may give me the edge I need to get through Phase 3 without getting completely wrecked. It's only one timebux, may as well try it out.
Another thing to play with would be putting dualcast spellblade on Bartz. That lowers his damage to ~6900 a hit, 8100-6900=1200 lost damage, and lowers his SB from 12000 to 10000... at that point I should probably switch the shellga armor to Bartz... eyeballing it, it looks like if it goes off once every 5 turns then it's worth it. Still, I don't like the randomness, and with the Weakness damage buff I can backload all of Bartz' and Zack's SBs to crank out the damage. By that point, adding in Ramza's throw stones should help delay him enough that I don't take too many hits once SG wears off at the end. Hmm. Yeah I guess I'll try that with Haste this time.
EDIT: Nope, not happening. Really need Haste and Damage mitigation, but giving up any skills I have for Haste leads to a quick death. I had basically perfect RNG and couldn't do it. Lame, DeNA. Lame.