Welp, giving up on that party setup against Adel. I can consistently get to phase three but by that point my dual delay (my main source of damage) and healing are both spent and there's not a whole lot I can do. Oh well, someday I'll take down a Divine boss. That day is not today, however.
Sunday daily drops in a half hour. If can potentially get Zack up to 65, slap Drain Sword on him to take a load off of my healers, and with his SSB I'd have more damage... But the outcome still does not look likely. I don't have the resources for more Indoor Spells but yeah.
Now, thinking about Mage setups, I could potentially go back to my original plan but tweaked. Drain is not particularly threatening with proper mitigation up, and I would definitely need to remove dispel in order to have enough damage to get by. I might spend mythril on a stamina refresh after I spend it all on my first round of Sunday grinding to get damage numbers after that to math out if I would have enough damage, but eeeeeh if I don't have enough damage then it would all be a wash anyway.
What I can do is find out how much minimum damage I would need per spell charge to succeed. Let's take a look at that.
Assuming a team of
Terra (Waterja, Dispel)
Kefka (Thundaga, Mana's Praen)
Faris (FB, MagBD)
Yuna (Diaga, Curaja)
Aeris (Shell, Curaga)
That would give me a total of 8+8+6=22 spell charges, so my minimum damage would have to be 288000/22 = 13090... I would need to hit the damage cap every time, use all of my charges for that to work It could work, especially since Faris deals about 2k a hit and 3k with a break. If I skip buffing, and throw Firaja on Kefka, that gives me 6 more charges to work with, making my minimum damage... still over the damage cap (10285), and honestly it would also take 6 more turns which I'm not sure I can manage without getting overwhelmed, and certainly will leave me with time with SG not up, meaning Drain will actually be an issue I have to deal with.
Nope, not happening. Oh well.