SLUDGEON: After realizing that the Sludgeon counter-attacks, this was pretty easy.
RELICA: In the beginning I put Wall and a double Spirit buff on everyone. Then Alicia equipped Silencetouch and tried to Silence Relica, while everyone got Hasted. In hasted state I could do more damage to the Ankh than it could cure and finally Alicia succeeded in silencing Relica. Thus I didn't even get to see Triumph at the end...
I know that the fight would have been easier by putting Infection on Relica, but I *hate* infection and try to avoid it whenever possible.
ANCIENT OBBIE: Pretty easy.
ANCIENT TRANSIENT: Very long fight, but not overly hard. Walls prevent Trauma-damage pretty well and Faith restores the lost MP. All other attacks are not really problematic at level 55-57.
MINACELL: Extremely long fight. Even hasted I managed only two or three hits on the boss per respawning round. The second-hardest boss in the final dungeon.
GRALLIET II: After testing a little bit, I realized that it was harmed by healing spells. So two Full-Cures took care of it.
C&B V: This was surprisingly managable. Brianna was occupied with Tara's Dispelstrike and Slowstrike and casted Haste on a lot of her turns. My two white mages casted Wall and Haste on everyone while Alicia buffed them. This way I could withstand their (now infrequent) attacks. Finally I slowly switched in Ivy and Amanda (and buffed them). Ivy's crippling strike was surpringly effective while Amanda (equipped with Deathproof) casted Flare on Craig. Having learned from the previous fight, I tried to reduce the health of both simutanously, so that a second improved phase wouldn't last long. But this didn't seem to be necessary this time.
PHANTOM VI: Again the first task was preparing for the nasty Plague and Disaster attacks: Two white mages casting Haste and Wall, Alicia casting buffs and Ivy casting Plague to Slow the Phantom and then Immunizing everyone against Plague. This way the attacks were at least survivable. Then I casted Reflect on everyone to prepare for Disaster - and now the Phantom did 140000 damage to itself!
YAUWE: After surviving the first Hellspawn, it got a lot easier, because Holy did far less damage.
TAMIKU: The main problem here was dealing enough damage, as my main damage dealers were in the other party and Aisha's Flare didn't do as much as I expected (compared to Amanda's Flare).
CODA: That Virus+Trauma combination is nasty, though only the beginning is very difficult. Once a few characters are buffed up, things became easier with a hasted Ivy's Triumph healing the infections.
CORELOCK: The beginning was pretty easy and arms were pretty easy due to Judgement. With three Auto-Walls the remaining part wasn't that bad either... The Corelock fell apart on one of my turns. Does this mean I whittled down all its HP or did I just survive long enough? It seemed to last only very, very few rounds once its arms have been defeated.
LUNARIS: Argh! Again this possession! So I had to move Vince in to have him possessed, because he is the least dangerous. The rest was a rather long fight. Especially annoying was the combo of first reducing everyone to 1HP and then putting all the status buffs on. I always killed the possessed Vince in between and then had none to remove all these buffs... By far the hardest battle in the final dungeon.
XEON: The first four incarnations were trivially done each with two Judgements. The next four needed slightly more, but never got close to actually hurting my party which was by now fully buffed up. This was actually a pretty disappointing fight.
WARBUGS: Nice bumping ability. But a hasted Tara with Sleepstrike kept the bugs so busy bumping themselves that they almost never attacked.
FLUCKSHINT: Fortunately one can silence this thing... After that the party can survive its attacks.