I struggled with this more than I'd expected. Having ougi mod from Settes really fixed it.
This setup isn't useful because of the off-element Death for swapping Makura back in. It's not really necessary; it'd be fine for to start her in the frontline and use a second sub passive. The setup's reliant on Makura landing her delay, though, and the permanent debuff resist down really helps.
Lucifer main isn't that great with only a couple of forced autoproc opportunities. Nothing else in the grid works as a main summon, though, and being able to run a support Bahamut is handy not just for the damage in an ougi setup, but also cutting Michael's cooldown.
Playing the setup is straightforward enough; press the buttons and ougi. Makura using her 1 first to dodge more takes priority over having her 2 up, but this leads to Belial accumulating some beads before she can start delaying.
Skill seal after 75% is actually kind of a problem. Having it land on Mahira on a turn she needs to clear 35 hit or dispel stinks without room to bring clear on MC. Not much to be done about it, though, besides just trucking through.
At this pace, stack count is around 4-5 at 50%, which is good enough to facetank.
Not playing at least one side of magna means that dispel is short for 65% and Lemegeton after 50%. Beelzebub's better saved for 5% in the latter case; the curn count isn't really very high in this setup, which leaves Michael as the only direct dispel. Triggering Mahira's plain autonuke is useful, but there's not much skill damage to go around either with only Mahira and Makura's autonuke as sources of skill damage.
25% isn't horrible. Makura can take care of herself with double strike for meter management, unlike Sturm. With a Qilin call, MC has two turns of dodging for the team to generate meter. With Chev swords, I'd had problems getting 20% damage in before running out of meter, but this grid burns through it fine.
5% is academic. Just a full chain with Bahamut call probably would have done the trick.
Compared to the ougi delay setups, this is certainly a lot more convenient. I'll have to see how those perform with new toys, though.
0:00 100%
5:56 75%
10:45 50%
15:47 25%