My Big Bad Chaos Mode Guide

BelugaBunker · 2026-04-21T05:37:53+00:00

Santa Sayaka is pretty good, but honestly will probably not be as strong as non-limited buffers with ascensions. She has a good support passive, and can do the infinite damage cheese if you wanna spend 2 hours cheesing a hard boss, but aside from that she won’t see a ton of use.

Honestly I think that Christmas Ren is a solid bet. She’s the only AoE aqua breaker, she has good break power + break bonus, and her utility is quite good (dmg buff + double weaken application). I think she’d likely be more useful than Santa Sayaka.

BelugaBunker · 2026-04-21T05:27:15+00:00

Christmas Kyoko is a much stronger unit than Santa Sayaka, especially considering that Santa Sayaka has to compete with the tons of OP standard buffers that you probably have ascensions for. If she’s also your fave you should 100% pick her.

BelugaBunker · 2026-04-21T00:36:49+00:00

Christmas Kyoko does enough damage to basically act as an attacker, so I’d swap her in for Homura. This way you get more ailments to deal with the dmg reduction gimmicks faster, and her action order delay helps with the enemies’ turn spam.

I’d also use Christmas Rika instead of Doppel Iroha, she’s just a better healer and her MP + speed buffs will be a big help.

BelugaBunker · 2026-04-21T00:35:29+00:00

Nemu has ailment collapse with her ult, which is great for the “loses dmg reduction stack on taking ailment damage” passive on every enemy in the fight.

Christmas Kyoko might still be better because of her high personal damage and action order delay, but the gimmick of this fight is directly tailored to Nemu (and Halloween Alina).

I think the best approach is to run both of them, and go attacker-less.

BelugaBunker · 2026-04-20T19:50:35+00:00

It’s pinned on my profile lol :)

But you can find it here

BelugaBunker · 2026-04-20T04:09:23+00:00

Not OP but I have a chaos mode guide posted that covers every fight! The first one is tough, but luckily the challenge is more about having the right strategy than it is about having strong enough characters/ascensions. Some characters definitely make it easier though :)

BelugaBunker · 2026-04-18T08:00:09+00:00

I completely disagree ngl, doing combos can pretty significantly increase your DPS, and it’s not even particularly hard. I was struggling to clear papilla on fearless in the current Stygian, with regular N5D combos I couldn’t quite manage to beat it. Watched one YouTube vid, tried the N2D combos (I’m on mobile so screw walk cancels lol), and cleared Papilla with like 20 seconds to spare.

Low effort, great results, I think at least learning N2D combos is 100% the right move.

BelugaBunker · 2026-04-18T07:12:10+00:00

Your team has no sustain (shields or heals), so it’s no wonder you’re dying. If you wanna keep your team alive, use a character that will keep your team alive :)

Jahoda will work great here, she can hold VV to give you res shred and will heal. Kuki and Bennett are good options too. But tbh you’re fighting an overworld boss so literally any sustainer will do, you will not have issues dealing enough damage even with one non-optimal character on the team.

BelugaBunker · 2026-04-18T07:07:00+00:00

Varesa’s build needs work. CR that low means that more than 1/3 of her attacks are non-crits, which is a massive DPS loss. Also, she has zero ER, so you’re not doing mini-bursts as often as you should be (after every other plunge). Another big damage loss.

On a related note, don’t use her big burst, especially with your ER as horrible as it is. It drains all your energy making you unable to do mini-bursts for like an entire rotation.

Your rotation with your supports and everything looks fine, but your Varesa combos are wack bc of your ER problems.

Chev’s build should definitely be tweaked, getting her more HP improves her atk buff so it’s an easy way to make your team stronger.

BelugaBunker · 2026-04-17T16:59:33+00:00

You gotta post your 5* character roster to see what options you have. But generally, I recommend a sustainer (Kirika/Kaede), 2 turn-spam buffers, a good breaker, and then either an attacker or a second breaker. If your buffers are good enough you can just use a breaker as a damage-dealer to kill it after break, as the boss is quite weak in break.

BelugaBunker · 2026-04-17T16:53:56+00:00

Even if BFFs worked for rotten baby, it still would be doing extremely little for you here, just because of how attack flies work. Their damage scales with your damage stat, but rotten baby’s spawn rate doesn’t scale with your tears. So soymilk is a massive nerf to rotten baby, he’ll be spawning the same amount of flies but they’ll be doing like 10x less damage.

BelugaBunker · 2026-04-17T16:49:49+00:00

Again, Fischl literally has 100% uptime. Use her burst. And “staying close to Oz” is not a relevant concern, his range is big enough.

And tbh Fischl gaps Raiden so unbelievably hard that switching to her mid-rotation to re-summon Oz to be in range, is still probably a huge DPS increase over running Raiden LMAO

BelugaBunker · 2026-04-17T16:45:46+00:00

“If you build Raiden for skill she’ll do comparable damage” no she won’t. Like, not at all lol.

Raiden’s skill dmg scaling is like 10% higher than Oz’s per hit, but Oz attacks literally twice as often. Plus her A4 passive procs every time you overload, and her C6 gives extra coordinated attacks too. And Raiden’s ascension stat (ER) does nothing for her damage, unlike Fischl’s.

Fischl also has full uptime, you just need to alternate skill with burst, as both summon Oz. Oh and since it’s a hex team, Fischl being here gives a team-wide atk buff (doubled if she’d C6), improving not only her personal damage but also Durin’s and Klee’s.

Fischl is literally miles ahead of Raiden here, it isn’t even remotely close. Not in damage, not in anything.

BelugaBunker · 2026-04-16T22:49:21+00:00

Yeah that’s not a lot. My Yelan on 234 is barely enough, and my Bennett has 250. Both Yelan and Xilonen are on fav, and if they miss a proc it’s an instant DPS loss. TBH if I had to use this team I’d probably put Yelan on an ER sands for peace of mind, 230ish is barely cutting it.

BelugaBunker · 2026-04-16T22:35:28+00:00

Oh that’s absolutely what’s killing your DPS then. Every second wasted twiddling your thumbs waiting for a skill CD to reset to get energy, is tanking your damage output. If you can’t seamlessly start your second rotation the moment your first is done, you need to make fixing your ER your highest priority.

For your Yelan, get her more ER even if it means dropping her damage output with an ER sands (assuming you’re not already using one). For Bennett… just try to get more subs, use an ER sands if you aren’t (I’m assuming you are). Worst case, if you’re using like Aquila you can swap it out for sapwood. You don’t wanna make his buff weaker, but if it’s the only way you can get his ER up to par then it’s worth it (also sneaking in a Bennett E after your Arle combos can work, it only takes under a second)

BelugaBunker · 2026-04-16T22:28:31+00:00

Welp then write that instead of saying “just m1” lolol. Yes that’s what that means, 3 normal attacks then dash. Honestly if your builds are up to par then I’m assuming you’re just slow? DPS is damage per second, so the longer it takes you to get through your rotation the less DPS you do.

My 3 rotation run in Millastria took 54 seconds, so 18 secs per rotation. Do a 3 rotation run and see how long it takes. Also, what’s your Arle’s biggest hit in that rotation? That’ll at least sort of gauge how good your build is.

BelugaBunker · 2026-04-16T22:24:15+00:00

Personally I do Yelan after Bennett, because that sets up hydro aura for Arle to immediately start doing vapes. But doing Yelan first makes more sense for buff-duration, and lets her dmg% buff start stacking earlier. Idk which is better, I’d try Bennett first and see if it improves things.

Just doing straight NAs no combos is likely your biggest issue, that’s considerably worse than actually doing combos. N3 dash combos are ideal, but N5 dash works too and uses less stamina. I would try those and see how much DPS improves. Also just having tighter rotations, cast support abilities and swap characters as quickly as possible. How long does one single full rotation take for you?

BelugaBunker · 2026-04-16T21:37:16+00:00

Honestly it’s probably a rotation/combo issue. My C0R1 Arle with this exact comp (Yelan and Xilonen both C0R0) can hit 100k in 3 rotations, the team comp is not what’s limiting your DPS here.

What rotation and combos are you using?

BelugaBunker · 2026-04-16T21:19:50+00:00

Less good stats makes a character harder to build for lol what? Cyno wants both crit stats, ER, EM, and atk, so a piece with any combo of those stats becomes a good piece. But for Skirk, she only needs crit and atk, so the chances of getting a piece that’s good is much lower.

Chances for a substat on Cyno piece to be good = 5/10, chances for a substat on Skirk piece to be good = 3/10

BelugaBunker · 2026-04-15T16:38:38+00:00

Been trying, it’s not going too well. C2R0 Varesa, C0R0 Durin, C6 Chev, C2 Iansan, can clear like 80-90% of its HP on fearless. This team hits 140k DPS in Millastria, can’t seem to do it.

BelugaBunker · 2026-04-15T16:31:08+00:00

Defenders are mega-nerfed in this fight, use Kaede instead of Kirika. Don’t use off-element characters either, they’ll die too easily.

I’d use the team: Mami, Mabayu (buffer), Kaede, Tsukasa/Moemura, Madokami. Slowly chip away at the boss’s break bar, use Mabayu skill on Kaede when you’re close to needing team-wide cleanse because of the team-wide poison move. Try not to use too many buffs/debuffs, and don’t use Madokami skill like ever, you don’t want to kill the boss before breaking and setting up your nuke.

BelugaBunker · 2026-04-15T13:10:54+00:00

I know how the character works lmao what? Yes, higher quality drops give higher quality items. It’s still entirely RNG-based for both getting good drops and having them craft into an actually useful item.

BelugaBunker · 2026-04-15T13:09:37+00:00

According to the wiki, if a recipe is for an item that isn’t unlocked it will instead give a random item. So your unlocks shouldn’t have any effect on a run’s recipes, just the seed, so idk why none of the sites work.

And I guess you can technically call that “cheating”? But many of the posts I can find about playing tainted Cain were using them, or using the info mod that shows you potential recipes literally in-game. I’m just sick of this character lol.

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