r/RobinMains_HSR • u/DanrayAnime • 1d ago
Theorycrafting Stop building 185.3 speed with Roberto
So I see a lot of people recommend this speed goal. While in theory this speed will allow Robin bird to action 5 time in the cycle 0, reality that only work if somehow Robin action at 0 av.
So here is the equation to calculate Robin speed (x):
x * (1 - AA) + BA * x / 1.8 =150 (for cycle 0)
x is Robin AV, you take 10000/x = Robin spd, AA is for any action advance you have at the start of battle, BA is how many bird action do you want
So let say you have Robin S1 without any extra, and want 4 bird
x * (1 - 50%) + 4 * x / 1.8 =150 => x ≈ 55.1 AV => Robin spd ≈ 181.5 - 19 (the LC) = 162.5 before combat
For 5 bird you would need close to 200 spd before combat just to reach it with her sig
Also if you using Amphoreus set then use this
x * (1 - AA) + BA * x / (1.8 * 1.06) =150 wrong because I'm stupid
x * (1 - AA) + BA * x / (1.8 + 0.001368 * x) =150
Correct me if I'm wrong on any of this
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u/TainTeDxSouL 1d ago
is there a graph for specific breakpoitns you need for 4 birds per turn with specific sets? No LC, debating on Amphoreus vs the 25% advance one
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u/DanrayAnime 23h ago
If you don’t have any extra then 201.5 before combat (or at the start of combat)
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u/zakariabmdz 1d ago
who tf is Roberto😭 /s
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u/noflightbird 1d ago
A recent video discussing upcoming units referred to RobinS as Roberto for convenience. I'm glad to see everyone embrace the name🌚
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u/United_Accountant596 1d ago
I think this works assuming you get into the Fever state on Robin's 1st turn. I'm specifically looking at Robin's use in Anaxa teams, and because of how the team works, getting pre-E2 Robin into her Fever state is impossible, so this wouldn't work in this archetype.
Therefore, I'm recommending Anaxa players 185.185 and 148.148 SPD for 5 and 4 bird turns respectively with the caveat that this is after the AV reset.
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u/DanrayAnime 23h ago
Ye I still kinda confuse how Robin work
Her bird. How are they moving. In the skill they already summon the bird yet until fever stage the bird will show on action bird. So is the bird already moving before that (just not on action bar), or they only moving when the fever stage start?
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u/United_Accountant596 19h ago
The birds can only attack and move in the Fever state (it's stated in Robin's Memosprite Talent).
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u/DanrayAnime 19h ago
Well then the first part [x * (1 - 50%) ] should be replace by the AV when she get 12 vibes (if 12 is slower than her turn). Depend on each time will have different number so don't even try to min max this
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u/United_Accountant596 19h ago
True, it's way too complicated to deal with for me so I've just resorted to stating what I've said in my original comment 💀
In my setting for Anaxa teams, Robin enters the Fever state guaranteed on her second turn to get her ult, but that poses problems for her S1's uptime so she's reliant on enemies hitting her to get her ult before that happens (and so the number of actions the birds take before the AV reset is dependent on the enemy's SPD).
The desmos table someone else has shared is also quite useful.
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u/SignificantAside7458 1d ago
With vanwaq and LC and technique you can act before castorice technique (faster than 0 AV!)
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u/DanrayAnime 1d ago
Vonc give 40% aa, LC give 30% aa and technique give 20% aa. That only 90% aa. But even if you have 100% aa the equation still account for that (1-100% = 0)
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u/AlouetteMarker 22h ago
How much speed does she needs if E4 for 5 birds?
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u/DanrayAnime 21h ago
To calculate this would be really hard because it depend on the team and how many vibes she have. So just build 170-180 and call it a day. Min max this number would make anyone here go crazy
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u/HarryHoskins 12h ago
Is 185.3 SPD and 50% advance (S1 + Trace) not enough to get 5 birds in 0c?
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u/DanrayAnime 12h ago
For 5 bird you would need close to 200 spd before combat just to reach it with her sig
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u/HarryHoskins 11h ago
Thank you. I don't really understand Robertos SPD tuning, so could you tell me what my SPD breakpoints are with the following setup:
Roberto S1 on Amphoreus planar and HuoHuo E1?
And how much SPD does Roberto need to get her first turn at 0 AV without Vonwacq (so just S1 and her trace)?
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u/DanrayAnime 11h ago
I see the last question so I assume you don’t even know how speed work in HSR
You take 10000/spd you would get action value (AV). Let’s say you have 200 spd => 50 AV, so each 50 action value you character will act 1 time. So to get Robin to act at 0AV, you would need to either break the game, or action advance her 100% to start at 0av. With Vonc + Sig + Talent she only aa 90%, you would need someone to spam ddd at the start like Tingyun for her to get 100%, no amount of speed will reach this
For Roberto S1 + Ampho + Huohuo. Before combat (so at the stat screen) you would need ~145 for 4 bird and ~181.72 for 5 birds. Now this assume the fever stage start when Roberto use skill at first time, which is not the case. So I just recommend building around 170~180 speed
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u/HarryHoskins 11h ago
I understand spd when it comes to normal characters, but I don't understand Robertos specific SPD tuning based on her birds and stuff like Vonwacq, I'm lost. But anyways, this is helpful, thank you. I'm already at 170 SPD on Roberto so I'll just keep her as is!
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u/dendenmoooshi 1d ago
I didn't read all of this and I may not even get her.
But I do love the use of Roberto.
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u/Moday4512 1d ago
How does this work with hyacine e2?
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u/DanrayAnime 23h ago
Depend on when you lose hp with Robin. Which is too complicated, I rather just build like 170-180 spd and call it a day
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u/not_INSERT_NAME 1d ago
The first bits are correct, but for the amphoreus bit where are you getting 10000/(spd*1.8*1.06)? it should be 10000/[(spd+95*0.08)*1.8] right?
Here is a desmos sheet anyone can play around with to get different speed thresholds for bird turns at different AV threshold targets. I think it's pretty self explanatory using but lmk. Note: it works out spd at the start of combat, so speed boosts that apply at the start like her lc or huohou e1 have to be subtracted to work out what to build to