Quantum Erudition finally has a second 5-star, and it's a Fate collab character with one of the wildest kits this game has ever leaked. No wonder the community can't stop talking about her.
Whether you're already committed to pulling Rin or still deciding between her and Himeko Nova, this guide covers everything from the 4.4 beta: full kit breakdown, best Light Cones and Relics, team comps, Eidolon priorities, and a pre-farm checklist so you're not scrambling on July 24.
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๐ก Note: All data below is sourced from the 4.4 closed beta datamine (v1, June 2, 2026). Numbers, mechanics, and multipliers may change before the official release. We'll update this guide once Rin Tohsaka goes live.
Rin Tohsaka Character Overview
Rin is a Skill Point economy character. Her Talent converts every SP consumed or recovered by any ally into Gem Energy, and once she accumulates 15 Gem Energy (or the team has 7+ SP), her Skill upgrades into a devastating multi-hit nuke. The more SP your team cycles, the harder she hits.
What makes her truly unique is the Archer synergy. If Archer is on the team, Rin's Trace passively increases the max SP cap by 2 (from 5 to 7), both she and Archer gain 150% ATK and 20% DEF Ignore, and they can launch a powerful Joint Follow-Up Attack that recovers 4 SP.
This is a kit designed from the ground up to pair with Archer, and it shows.
For a look at how current Erudition characters compare, our HSR tier list covers the live meta. We'll add Rin once she's officially released and tested.
Rin Tohsaka Strengths & Weaknesses
Rin Tohsaka Best Builds (At a Glance)
Here's the quick reference. Detailed analysis for every pick follows in the sections below.
Light Cone breakdown | Relic sets explained | Team comp analysis | Material pre-farm list
Quantum Erudition DPS Build (Recommended)
Rin Tohsaka Trace Priority
Rin Tohsaka Kit Breakdown
Rin's kit revolves around one central resource and a strict gameplay loop. Understanding Gem Energy is essential before anything else.
โ๏ธ Basic ATK: Bajiquan
Deals Quantum DMG equal to 140% of ATK to a single enemy.
Rin punches. That's it. You should only ever use this when you're completely out of SP and Gem Energy, which in a properly built team shouldn't happen often. Think of it as emergency filler.
๐ก๏ธ Skill: Jeweled Sword Zelretch
Deals Quantum DMG equal to 225% of ATK to a single enemy.
This is the base version that costs 1 SP. It's a decent single-target hit, but you don't want to use this version if you can avoid it. The whole point of Rin's kit is to upgrade this into Second Magic Experiment.
๐ฅ Enhanced Skill: Second Magic Experiment
Deals Quantum DMG equal to 112% of ATK to all enemies, then fires jewel bombs that each deal 112.5% of ATK to a random enemy. Consumes 3 Gem Energy per bomb. Repeats until Gem Energy drops below 3 or all enemies are dead. Maximum 33 bounces.
Before firing, if current SP is above 2, all excess SP is consumed and converted into Gem Energy at a 1:2 ratio. This means going into Enhanced Skill with 7 SP converts 5 SP into 10 Gem Energy before the bounces even start.
The theoretical maximum on a single target is staggering. Assuming all sources stack without a cap: 20 Gem Energy (base) + 10 (Technique) + 12 (Ultimate Trace) + 10 (SP conversion from 5 excess SP) = 52 Gem Energy.
That's 17 bounces at 112.5% each, plus the 112% AoE opener. Theoretical total: 112% + 17 ร 112.5% = 2,024.5% ATK before CRIT DMG bonuses, Vulnerability, and DEF Ignore.
Note that this is a best-case calculation; actual Gem Energy accumulation per rotation will depend on team SP cycling speed and whether any per-instance caps exist that haven't surfaced in beta data yet.
In multi-target scenarios, the bounces spread across enemies, making her excellent for wave content like Pure Fiction.
๐ก Gameplay Tip: Always use Ultimate before Enhanced Skill. The Ultimate's Trace grants 12 Gem Energy, its base effect recovers 1 SP, and the 25% Vulnerability debuff amplifies every subsequent bounce. Sequence: Ultimate โ Enhanced Skill โ collect Gem Energy from allies โ repeat.
๐ Ultimate: An Gal Ta Ki Gal ล รจ
Deals Quantum DMG equal to 750% of ATK to one designated enemy and 250% of ATK to all other enemies. Recovers 1 SP and increases DMG taken by all enemies by 25% for 3 turns.
At 160 Energy cost, her Ultimate requires some investment in Energy management, but the payoff is enormous. The 25% Vulnerability debuff applied before your Enhanced Skill turn means every single one of those 33 potential bounces hits 25% harder. The 1 SP recovery also feeds back into her Gem Energy via Talent.
With the Inbound Prosperity Trace, using Ultimate also grants 12 Gem Energy directly, making it a critical setup tool.
๐งฌ Talent: Gem Magecraft
When entering combat, gains 20 Gem Energy. When any ally consumes or recovers SP, Rin's CRIT DMG increases by 125% for 2 turns. For every 1 SP consumed or recovered, gains 1 Gem Energy. At 15+ Gem Energy or 7+ current SP, Skill enhances.
This is the engine. The 125% CRIT DMG buff is practically permanent in any team that cycles SP regularly (which is every functional team). And because the buff triggers on both consumption AND recovery, abilities like Sparkle's SP generation or Huohuo's Energy restore all count.
The Gem Energy accumulation is passive and automatic. You don't need to do anything special. Just play normally, cycle SP, and watch the counter climb.
๐ค Talent (Secondary): Freeform Tohsaka Style
After Archer uses his Skill "Caladbolg II," if there are 3 or fewer SP, Rin and Archer launch a Joint Follow-Up Attack on all enemies. Rin deals 375% ATK Quantum DMG, Archer deals 375% ATK of his own damage type. Recovers 4 SP. Triggers once per Rin turn.
This is the signature Fate collab mechanic. The joint attack deals massive AoE damage, refunds 4 SP (which generates 4 Gem Energy and re-triggers the CRIT DMG buff), and looks incredible.
The โค3 SP condition is naturally met after Rin burns through SP with her Enhanced Skill. The once-per-Rin-turn limit is inferred from beta gameplay patterns and has not been explicitly confirmed in datamined text.
๐ญ Technique: Conversion Charge
Gains 10 Gem Energy at the start of the next combat.
Simple and effective. Always use this before entering a fight. The 10 extra Gem Energy means you start at 30 instead of 20, translating to roughly 3 extra bounces on your first Enhanced Skill.
๐ Key Traces
Elegant Conduct is one of the most loaded Traces in the game. The +2 SP cap is massive for team building, the 150% ATK buff is applied unconditionally, and sharing the full effect with Archer turns him into a significantly stronger sub-DPS just by existing on the team.
These values are based on beta v1 datamine and may be adjusted before release.
We'll verify the final numbers on launch day. These values are based on beta v1 datamine and may be adjusted before release. We'll verify the final numbers on launch day.
Best Light Cones for Rin Tohsaka
Signature: Flickering Stars (5-Star Limited)
โ ๏ธ Important: The values above are datamined from the 4.4 beta. S1 values are estimated based on standard Light Cone scaling patterns; exact S1 numbers will be confirmed on release. All analysis below uses S5 values as the reference ceiling.
At S5, Flickering Stars is exceptional. The 30% CRIT Rate is a premium stat line, the 60% Skill DMG directly amplifies her Enhanced Skill bounces, and the Radiant Crown passive stacks with her Trace's 20% DEF Ignore for a combined 70% DEF Ignore at S5.
At S1, the numbers are already strong: 18% CRIT Rate, 36% Skill DMG, and 30% total DEF Ignore (10% team-wide + 20% personal, stacking with the Trace's 20% for 50% combined at S1). The 4+ SP consumption condition is trivially met when Rin uses her Enhanced Skill (which dumps all SP above 2).
Alternative Light Cones
The following alternatives are recommended based on general Erudition DPS theorycrafting. No direct damage comparisons for Rin specifically have been published yet. Rankings may shift once optimizer data is available.
โ ๏ธ Important: All values above are datamined from the 4.4 closed beta and subject to change before release.
Best Relics for Rin Tohsaka
Recommended Relic Sets
Recommended Planar Ornaments
Main Stat & Sub-Stat Guide
Sub-Stat Priority: CRIT Rate โ CRIT DMG > ATK% > SPD
Best Rin Tohsaka Team Comps
Rin's team building follows a strict template due to her SP dependency and Archer synergy. The core is always Rin + Archer, leaving two flex slots for a Harmony/Amplifier support and a Sustain.
Team 1: Premium Fate Comp (Recommended)
This is the gold standard. Sparkle's SP generation and CRIT DMG buffing is tailor-made for Rin's SP-hungry playstyle. Huohuo's team-wide Energy restoration and ATK buff cover Rin's secondary needs. Every member generates or restores SP constantly, keeping Rin's Gem Energy topped off.
Rotation outline: Sparkle Skill (target Rin, +1 SP, advance turn) โ Huohuo buffs โ Archer Skills (triggers Joint ATK if โค3 SP) โ Rin Ultimate โ Rin Enhanced Skill (dump SP into Gem Energy, unleash bounces) โ repeat.
Team 2: Maximum Amplification
For players who own Tribbie, this comp trades Sparkle's SP generation for Tribbie's raw damage amplification. The team's total damage ceiling is potentially higher, but SP management becomes tighter without Sparkle's dedicated SP recovery.
Team 3: F2P / Accessible
The beauty of this comp is that Archer is free. Players can claim either Archer or Gilgamesh through the collab login event (running through Version 4.6). Choosing Archer here gives you the most critical piece of Rin's team at zero cost.
Team 4: Dual DPS (Advanced)
An aggressive dual-carry setup that sacrifices a dedicated Harmony slot for more total damage output. Works best in extended fights where both carries can cycle through their burst windows. SP pressure is extreme, so this comp requires precise rotation management.
๐ก Important: Archer is near-mandatory in all competitive Rin teams. Without him, you lose the +2 SP cap, the 150% ATK + 20% DEF Ignore sharing, and the Joint Follow-Up Attack. Running Rin without Archer is technically possible but removes several of her most impactful mechanics, resulting in a substantially lower damage ceiling.
Rin Tohsaka Eidolons Breakdown
Rin is fully functional at E0. Her Eidolons provide steady, even scaling without dramatic breakpoints. Below are the damage increase percentages based on early Archer team calculations (subject to change).
Eidolon Investment Summary: E0 clears all current endgame content. E1/E2/E6 each provide roughly 12~15% DPS increase with no dramatic power spikes between them. E3 and E5 are pure level-up bonuses; never stop at them intentionally. E4 is a utility-only Eidolon with no direct damage gain.
Recommended path: E0S1 (character + signature LC) โ E2S1 โ E6S1 if budget allows.
Rin Tohsaka Ascension and Trace Materials (Pre-Farm Guide)
Pre-Farm Priority Order
- Weekly Boss Materials (start now): Destroyer's Final Road drops from the Echo of War. At 3 attempts per week, 9 copies could take up to 3 weeks. Start accumulating boss currency now.
- Common Enemy Drops (Thief's Instinct line): You need a combined 108 Thief's Instinct, 81 Usurper's Scheme, and 57 Conqueror's Will across character + LC. Farm these passively through daily commissions and targeted elite hunts. Double-check your stockpile.
- Crimson Calyx (Erudition Path): Cosmic Sandpit through Celestial Globe. Shared across character Traces and LC ascension, so the total volume is significant. Dedicate spare Trailblaze Power here.
- Tracks of Destiny: 6 total. Available from Simulated Universe clears and the monthly Embers shop. Not farmable on demand, so check your reserves early.
- Relic Farming: Start once the above are secured. Genius of Brilliant Stars drops from Cavern of Corrosion: Path of Providence in Jarilo-VI. If you've built other Quantum characters (Seele, Silver Wolf, Fu Xuan), you may already have usable pieces.
- Credits: ~2.89M total. Not typically the bottleneck, but don't forget to redeem active Honkai Star Rail codes for free credits and materials.
Should You Pull for Rin Tohsaka?
Pull if:
Skip if:
Conclusion
Rin Tohsaka is one of the most mechanically ambitious characters HoYoverse has released. Her Gem Energy system, the SP-to-bounce conversion, and the Archer joint attack create a gameplay loop that rewards precise resource management with some of the highest single-action damage numbers in Honkai: Star Rail's history.
She's not plug-and-play. She demands Archer on the team, burns through SP aggressively, and punishes poor rotation management. But when everything clicks, 33 jewel bombs raining down on a boss while Archer launches a follow-up is one of the most satisfying experiences the game has to offer.
Start farming Erudition Path Calyx materials and common enemy drops now. If you're planning to pull, GamsGo's Oneiric Shard top-up saves up to 30%, giving you more pulls to secure both Rin and her signature Light Cone in the same banner window.
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FAQ about Rin Tohsaka
When Does Rin Tohsaka Release?
Rin Tohsaka arrives in Version 4.4, launching July 24, 2026. She headlines the second wave of the Fate/stay night [Unlimited Blade Works] collaboration. Her banner is expected to run through Version 4.6.
Is Archer Required for Rin's Team?
Not technically required, but strongly recommended. Without Archer, Rin loses the +2 SP cap, the shared 150% ATK + 20% DEF Ignore buff, and the Joint Follow-Up Attack. These are some of her most impactful mechanics, and losing all of them substantially lowers her damage ceiling. Archer can be obtained for free through the collab login event.
Is Rin Tohsaka's Signature Light Cone Worth Pulling?
Yes. At S5, Flickering Stars provides 30% CRIT Rate, 60% Skill DMG, and up to 50% DEF Ignore (stacking with her Trace for 70% total). Even at S1, the CRIT Rate and Skill DMG bonuses are highly competitive. The DEF Ignore scaling is a mechanical advantage that no alternative replicates.
Will Rin Tohsaka Get a Rerun?
Based on Wave 1 precedent, Rin's banner is expected to remain available indefinitely after launch, similar to Saber and Archer. However, there is no official confirmation that this will apply to Wave 2. The collab event itself (story, free character login, event rewards) runs through Version 4.6 and will not return.
How Many Stellar Jade Do I Need to Guarantee Rin Tohsaka?
Budget up to 28,800 Stellar Jade (180 pulls at worst-case pity). Based on Wave 1 precedent, the Fate collaboration banners use a separate pity counter from regular limited banners, meaning existing pity from standard banners likely will not carry over. However, official confirmation for Wave 2 pity mechanics is still pending. Plan conservatively and assume you're starting from zero.
Does Rin Tohsaka Work at E0?
Yes. All core mechanics (Gem Energy, Enhanced Skill bounces, Archer Joint ATK, Talent CRIT DMG buff) are fully functional at E0. E1 adds a free Enhanced Skill per burst window, and E2 provides a team-wide Skill DMG multiplier. E0 with her signature Light Cone (E0S1) is the recommended baseline for competitive endgame play.
Rin Tohsaka or Gilgamesh: Which Should I Prioritize?
Rin requires gacha investment; Gilgamesh is free from the login event. The real question is whether to pull Rin's banner or Gilgamesh's Light Cone banner. For most players, Rin first is the priority since she's the only character in 4.4 that costs Stellar Jade to obtain.
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