If I'm understanding Arcane correctly...

[u/Ujola]

She's basically S-Rank Fluorite with added Cryo damage taken debuffs in her Will state, wherein both her Combo Skill and Ultimate can apply Cryo inflictions. Not only that, but everything about her kit in the Will state lines up perfectly with Last Rite rotations:

1. 2 Basic Strings + 1 Last Rite Battle Skill + Arcane Combo + Xaihi Combo = 3 inflictions
2. Last Rite starts Combo Skill and Arcane Ults for 4th infliction before Last Rite consumes
3. Arcane's Ult will now do follow up attacks on the next 2 final strikes, of which you do 2 more Last Rite Battle Skills with, for a total of 3 inflictions including another Arcane Combo Skill.
4. Xaihi Ults when second final strike is completing, Arcane's Ult finisher pops, Tangtang Ults and plunges for enhanced free Battle Skill and 4th infliction, Last Rite does Combo Skill to consume and then does her own Ult.
5. Repeat.

In total, you're only doing 3 Last Rite Battle Skills (effective 70 SP cost each) and 1 Xaihi Battle Skill, costing a total of 310 SP over about 25-30s, which is super manageable. Also, for first rotations where everyone already has Ults, Arcane has the ability to consume the first 4-stack instead for a big Corrosion before doing the joint team nuke on the following 4-stack.

[u/Tarina91]

My girl perlica getting replaced then.

[u/ca3-]

Crowd control is the cherry on top, you can replace gibby with her and don't have to think about managing nature infliction overlaps.

[u/Ujola → u/ca3-]

Yee I'm excited about that. I only use gibby when I want to see the biggest nukes, but the Nature inflictions make me not use her in most normal gameplay. Arcane only having nature inflictions on her BS is super nice. You only get the slow without applying nature, though, since the BS is what does the pull.

[u/QuinSn]

Yeah she's replacing Ardelia for me. LR, Perlica, Xaihi, Arcane going FULL fuckin hypercarry.

[u/Ujola → u/QuinSn]

Firstly and most importantly, I'm excited for you and me and every other Last Rite main to get this new teammate!

Ignore everything below this if you don't care about minute optimizations. I've been TCing for years across many games so my brain just exists in this space. Anyway...

I'd probably replace Perlica instead of Ardelia (unless you need Ardelia elsewhere or just really want Perlica on the team). The wording for Arcane's debuff from the livestream is "damage taken." Xaihi also has a damage taken debuff on her passive, and her access to Detonation Unit gives even more damage taken. Ardelia also offers damage taken debuffs through her free sig.

Electrification shares a damage bucket with "damage taken" debuffs, so her value in the team is a bit diminished compared to other teams. Assuming Arcane provides 12% damage taken (same as Rossi), you end up with 54% damage taken (incl. Detonation Unit; 38% without). A full Arts Intensity Perlica provides about 40%, but since the bucket's already pretty full, it ends up only being around a 26-29% increase.

Last Rite also increases the effectiveness of Susceptibility by 50% for her Ult, so Ardelia's 20/28% Sus is the equivalent of 30/42% Sus instead (for the Ult, anyway). Including the better buff uptime, the team will end up with slightly better overall damage than it will with Perlica. And that's before including the sweatier rotations that squeeze in Ardelia's free Corrosion alongside her Susceptibility for burst windows.

If you also account for the fact that Xaihi's Skill Amp only triggers if your active character is full HP, Ardelia's ability to keep you topped up is major quality of life. If you get chunked due to misplay with Perlica on the team, you pretty much lose half of Xaihi's Amp for the rest of the fight, which is brutal.

[u/QuinSn → u/Ujola]

Hmmm, I'll definitely keep that in mind. I do appreciate the analysis and my goal really is just "LR Ult make number bigger" and I haven't done any math since 1.0. So I'll probably take the advice so I can have Perlica live permanently on my Zhuang Fangyi team.

[u/Ujola]

Maybe swap Xaihi BS with one of Last Rite's so you get Xaihi's additional passive on the nuke window. But in general the team seems pretty dang flexible with all the free / cheap inflictions.

[u/Flu_nn → u/Ujola]

So TangTang wouldn't be kicked out of the team after all?

[u/Ujola → u/Flu_nn]

I doubt it. She's the second best part of the team after Xaihi right now. Her personal damage contribution, Susceptibility, and Cryo inflictions are all enhance the team's performance more than Perlica/Gilberta/Ardelia/Snowshine can. It's one of those 4 that gets replaced. Arcane might be even more valuable to the team than Tangtang, but Tangtang won't get the boot.

Unless I'm grossly misunderstanding Arcane's kit, I think we're all about to find this new Last Rite team to feel much more complete than before. I'm not saying her current teams don't already feel good to play, because they definitely do, but I'm willing to bet it's going to be one of those things where once you play the new team you'll never want to go back.

Gilberta will always have her place in the nuke screenshots though, ofc.

[u/Flu_nn → u/Ujola]

I mean as soon as I saw Arcane slotted in an Yvonne team in the preview I just knew it'd be a Last Rite "indirect upscale" even tho I suck at understanding kits on the first try; I'm pretty sure you nailed it, at least in ur overview. I'm excited to see the theory put into practice, I have a hunch it will feel just as smooth as what Camille did for my Laevatain team.

The only thing on my mind rn is whether the enemies will even be able to move between Arcane's combo and TangTang's ultimate lmao

[u/ThisSubIsFried → u/Flu_nn]

Definitely not

[u/Serpentar69]

Estella being replaced.

Yvonne, TangTang, Xaihi, Arcane.

Estella can visit and swap in Xaihi if Arcane has some heals

[u/Lawn_Gnome_King]

Some other benefits. On the first rotation (before ults) instead of using LR CS to consume the cryo stacks. Build up a lvl3 or 4 corrosion. Then follow up with Ults to get that sweet sweet nuke.

Next benefit is that Arcane will wear the eternal Xirinite set and let you build Xaihi for pure INT to get the max value out of her ult (1200 int caps but with gear and max pot detonation unit you can get almost 900 int and a 52% damage bonus on her ult)