Illuminating Dragon Caller - Annihilation

Kaede x pixel Brachys farming team:

https://youtu.be/Vvdx2yvOWJ4

Dark Metatron clear:

It's not a super reliable clear, but maybe this can be a start for other people to build on:

I found that, for me, the most important thing was having 100% blind resist

Maniacs RCV+ badge

Mega Awoken DMeta (long CD dark assist) you can assist, e.g. Avidya Saber as long as it isn't skilled up

Tsukuyomi (either a long CD assist or another debuff override) - a time debuff override is critical and I needed the TEs

Split-Ult Nohime (D/D) - I inherited base Nohime on Nohime because I have lots of Nohimes. the +2 combo count helps deal with the resolve floor

Aife (Avidya Saber) - my Saber is skilled up, so I inherited it onto Aife. She's a God with triple 7cs and 2TEs, which is why I took her despite being off-color. The awoken bind-clear is helpful, but probably not critical. I used her hazard removal on the first floor

Split-Ult. Kami (D/W) (Dark Female Hunter) - her 7c form may be more reliable, but I like having the variety of awakenings. I brought her assist (99 flat damage + 5 dark orbs) to deal with floor 3. Any <100 flat damage assist works.

Friend DMeta (Avidya Saber - unskilled if possible). Any blind resist assist to bring you up to 100% blind resist works as long as it's unskilled

F1: Sadly, neither Meta is up yet with this build. If she's up in your build, the best move may be to just pop Meta and kill. If not:
Stall until they hit you below 80%. It's not necessary to keep your shield up, but match the bombs if you can. Once you're below 80%, use Aife to clear away hazards and kill.

F2: Combo, combo, combo. Taking a few hits is safe as long as you have your shield, so if you don't have a board at first, that's fine. It took me two turns to kill her, which was fine. Just watch out for the gravity she does after being "asleep" for 2 turns.

F3: Blind resist is critical here. You have to kill the dark guy before he debuffs your orb move time. If your 99 flat damage is up, use it on the void. You'll avoid bombs that way. If not, it's a little trickier. Match the preemptive bombs and target the Dark guy. Basically on this floor it's about getting rid of one or another of the spawns as fast as possible. If you can OHKO the dark guy, the void can be stalled out. If you flat damage the void spawn, then it's less urgent to OHKO the dark spawn, because the damage you take every turn is much lower.

Obviously VDP is an option here, but I can't 7c a VDP board well, and it's just honestly not worth the Metatron active.

F4: I used my +2 combo count Nohime to get follow-up attack + 7 combos. Ideally, you would match or skyfall 8 combos to get 10 after the buff. That activates Kami's 10c awakening and you can easily OHKO.

F5: Honestly a nightmare. This is probably the diciest floor, so this is the floor I built around. You want to go into this floor with as much health as possible, because he can really do a number. If you can 7c a VDP board and kill, it's worth popping a metatron. I can't, so I didn't try. Most of your damage doesn't get voided out (at least not at full health like I was), so you can almost kill this spawn in one hit. If you get leader swapped, stall it out as much as you possibly can. Use any healing actives you have. Kami works as an emergency heal here.

F6: Boss time. Two critical points:
1. Override her time debuff immediately. Don't forget like I did, it will most likely cost you the run.
2. If you only have one DMeta active, you need a spike to OHKO. At the *very* least you need a Meta + an orb unlock & awoken bind clear.

The first thing I did was pop my Metatron and time debuff override. Max combo, and knock her down below half. Try not to knock her into her danger zone. If you do, you must clear the awoken binds and kill immediately, because her execution is almost 500,000 damage.

If you knock her below half and don't put her in her danger zone (I had a perfect 10c Metatron board and didn't knock her into her danger zone, so it's pretty difficult unless you have a lot of dragon/devil killers), then she will do a blind, a gravity, and 10 locked bombs. This is why 100% blind resist is critical. The gravity ensures you're below 80% no matter what. Use your last Meta active to unlock the bombs, orb change, and kill.

I hope this helps!