Rin Tohsaka Guide and Best Builds

Introductions

Rin Tohsaka is a 5-Star Quantum character who follows the Path of Erudition. Rin is an ATK-scaling DPS with supportive capabilities, who consumes Skill Points to deal high amounts of damage. She has particularly strong synergy with Archer, improving his damage, while contributing damage of her own.
Our Rin Tohsaka Build Guide will show you the best Light Cones, Relics, and Team Compositions for Rin.

Rin Tohsaka can be played either as an Archer Support or as a Main DPS. While her Archer Support build focuses on maximizing Archer's damage through SP Generation and joint attacks, her Main DPS build focuses on maximizing the damage of Second Magic Experiment through repeated Gem Energy generation and consumption.

Playing her as a Archer Support is generally the recommended build due to its low investment requirements and exceptional synergy. However, playing Rin as a DPS offers its own unique playstyle and can feel very rewarding, especially if you like the idea of Rin taking down all the enemies by herself

Archer Support Main DPS

Rin Tohsaka's Best Light Cone

The percentages listed show the relative DPS increase when accounting for both the Light Cone effects and base stats. The below recommendations are for the Archer Support build, so make sure to switch to the other build if you're curious about how to play Rin as a main DPS.

Flickering Stars (S1)
114%

Increases the wearer's CRIT Rate by 18.0 / 21.0 / 24.0 / 27.0 / 30.0%. When any ally character consumes a total of 4.0 or more Skill Points in a single turn, the wearer gains "Radiant Crown," lasting for 3.0 turn(s). While the wearer has "Radiant Crown," all allies' DMG ignores 20.0 / 24.0 / 28.0 / 32.0 / 36.0% of the target's DEF, and Skill DMG dealt by the wearer increases by 72.0 / 84.0 / 96.0 / 108.0 / 120.0%. Effects of the same type cannot stack.

Rin Tohsaka's signature Light Cone and her strongest overall option. It increases her personal DMG while granting DEF Ignore to the whole team and additional DEF Ignore for her own attacks.

Into the Unreachable Veil (S1)
102%

Increases the wearer's CRIT Rate by 12.0 / 14.0 / 16.0 / 18.0 / 20.0%. When the wearer uses their Ultimate, increases the wearer's Skill DMG and Ultimate DMG dealt by 60.0 / 70.0 / 80.0 / 90.0 / 100%, lasting for 3 turn(s). After the wearer uses their Ultimate, if this Ultimate consumed 140 or more Energy, recovers 1 Skill Point.

Sources: Event Warp (limited)

A strong premium alternative that trails her signature option. It increases Rin's personal DMG and generates an additional Skill Point when she uses her Ultimate.

Today Is Another Peaceful Day (S5)
100%

After entering battle, increases the wearer's DMG based on their Max Energy. Each point of Energy increases DMG by 0.2 / 0.25 / 0.3 / 0.35 / 0.4%. A max of 160 Energy will be taken into account for this.

Sources: Nameless Glory

One of the stronger 4-Star options available to Rin Tohsaka, providing a consistent DMG bonus based off her Max Energy.

Eternal Calculus (S5)
98%

Increases the wearer's ATK by 8.0 / 9.0 / 10.0 / 11.0 / 12.0%. After using an attack, for each enemy target hit, additionally increases ATK by 4.0 / 5.0 / 6.0 / 7.0 / 8.0%. This effect can stack up to 5 times and last until the next attack. If there are 3 or more enemy targets hit, this unit's SPD increases by 8.0 / 10.0 / 12.0 / 14.0 / 16.0%, lasting for 1 turn(s).

Sources: Herta's Store

One of the stronger free 5-Star options available for Rin Tohsaka, providing ATK% and some SPD as long as Rin attacks 3 or more enemies. She can fulfill this without using her Enhanced Skill by using her Joint ATK.

Today Is Another Peaceful Day (S1)
97%

The Day The Cosmos Fell (S5)
96%

Increases the wearer's ATK by 16.0 / 18.0 / 20.0 / 22.0 / 24.0%. When the wearer uses an attack and at least 2 attacked enemies have the corresponding Weakness, the wearer's CRIT DMG increases by 20.0 / 25.0 / 30.0 / 35.0 / 40.0%, lasting for 2 turn(s).

Sources: Forgotten Hall Store

A alternative that provides CRIT DMG, remaining close to other free options.

Make the World Clamor (S5)
96%

The wearer regenerates 20 / 23 / 26 / 29 / 32 Energy immediately upon entering battle, and increases DMG dealt by the wearer's Ultimate by 32.0 / 40.0 / 48.0 / 56.0 / 64.0%.

Sources: Stellar Warp

An Energy-focused alternative that remains close to other free options by providing initial Energy for a faster Ultimate, usually used by context for immediate ultimates.

The percentages listed show the relative DPS increase when accounting for both the Light Cone effects and base stats. The below recommendations are for the Main DPS build, so make sure to switch to the other build if you're curious about how to play Rin as a support for Archer.

Flickering Stars (S1)
124%

Rin Tohsaka's signature Light Cone and her strongest option as a Main DPS. Since a much larger share of the team's damage comes from Rin herself in this build, the offensive stats and DEF Ignore it provides become significantly more valuable than they are in Archer teams.

Into the Unreachable Veil (S1)
110%

Rin Tohsaka's strongest premium alternative. It provides DMG% and CRIT Rate while generating an additional Skill Point after using her Ultimate, helping her Skill Point/Gem Magecraft economy.

Today Is Another Peaceful Day (S5)
100%

One of the stronger 4-Star options available to Rin Tohsaka, providing a consistent DMG bonus based off her Max Energy

Today Is Another Peaceful Day (S1)
91%

Geniuses' Repose (S5)
89%

Increases the wearer's ATK by 16.0 / 20.0 / 24.0 / 28.0 / 32.0%. When the wearer defeats an enemy, the wearer's CRIT DMG increases by 24.0 / 30.0 / 36.0 / 42.0 / 48.0% for 3 turn(s).

Sources: Stellar Warp

A good option that grants CRIT DMG after defeating enemies.

The Day The Cosmos Fell (S5)
89%

A alternative that provides CRIT DMG, performing around other free options.

The Seriousness of Breakfast (S5)
89%

Increases the wearer's DMG by 12.0 / 15.0 / 18.0 / 21.0 / 24.0%. For every enemy defeated by the wearer, the wearer's ATK increases by 4.0 / 5.0 / 6.0 / 7.0 / 8.0%, stacking up to 3 time(s).

Sources: Mission Reward, Forgotten Hall Store, Echo of War

A consistent Light Cone that grants her ATK% upon defeating an enemy.

Eternal Calculus (S5)
87%

A free 5-Star alternative. While Rin can easily trigger these effects, she generally prefers options that provide other stats, as she has an abundance of DMG%.

Best Relics and Planar Ornaments for Rin Tohsaka

Best Relics for Rin Tohsaka

These are the best Relic Sets and Planars to build for Rin Tohsaka when played as a support for Archer.

Genius of Brilliant Stars
100%

2-Piece Set: Increases Quantum DMG by 10.0%.

4-Piece Set: When the wearer deals DMG to the target enemy, ignores 10.0% DEF. If the target enemy has Quantum Weakness, the wearer additionally ignores 10.0% DEF.

Rin Tohsaka's best-performing Relic Set, especially against Quantum Weak enemies or when she's paired with other sources of DEF Shred, such as her Signature Light Cone. However, it is not mandatory. Rin's DMG is more apparent in sustainless teams, where this set has a stronger impact due to her possessing a higher DMG share.

Passerby of Wandering Cloud
98%

2-Piece Set: Increases Outgoing Healing by 10.0%.

4-Piece Set: At the start of the battle, immediately regenerates 1 Skill Point.

A decent alternative that provides an initial Skill Point at the beginning of battle.

Best Planar Ornaments

Penacony, Land of the Dreams
101%

2-Piece Set: Increases wearer's Energy Regeneration Rate by 5.0%. Increases DMG by 10.0% for all other allies that are of the same Type as the wearer.

A competitive option when she is played with Archer, providing him with 10% DMG.

Lushaka, the Sunken Seas
100%

2-Piece Set: Increases the wearer's Energy Regeneration Rate by 5.0%. If the wearer is not the first character in the team lineup, then increases the ATK of the first character in the team lineup by 12.0%.

A competitive option when she is played with Archer, providing him with 12% ATK.

City of Myriad Forms
98%

2-Piece Set: When the wearer uses a Follow-Up ATK, their ATK increases by 24.0% for 2 turn(s). When an enemy target is defeated, increases CRIT DMG for all allies by 12.0% for the rest of the current battle. This effect cannot stack.

Rin Tohsaka's strongest Planar Ornament option, providing ATK% to both Rin and her team when she triggers her Joint ATK.

Tengoku @Live Stream
97%

2-Piece Set: Increases the wearer's CRIT DMG by 16.0%. If 3 or more Skill Points are consumed in the same turn, additionally increases the wearer's CRIT DMG by 32.0% for 3 turns.

A decent offensive alternative that requires 3 or more Skill Points to be consumed in the same turn at least once every three turns. It is unlikely this will be consistently fulfilled.

Rutilant Arena
96%

2-Piece Set: Increases the wearer's CRIT Rate by 8.0%. When the wearer's current CRIT Rate reaches 70.0% or higher, DMG dealt by Basic ATK and Skill increases by 20.0%.

A decent offensive alternative that increases the DMG of her Skills.

Best Relics for Rin Tohsaka

These are the best Relic Sets and Planars to build for Main DPS Rin Tohsaka.

Genius of Brilliant Stars
100%

2-Piece Set: Increases Quantum DMG by 10.0%.

4-Piece Set: When the wearer deals DMG to the target enemy, ignores 10.0% DEF. If the target enemy has Quantum Weakness, the wearer additionally ignores 10.0% DEF.

Rin Tohsaka's best-performing Relic Set. The DEF Ignore it provides scales well with external DEF Reduction or Ignore, and becomes even stronger when paired with her Signature Light Cone.

Scholar Lost in Erudition
99%

2-Piece Set: Increases CRIT Rate by 8.0%.

4-Piece Set: Increases DMG dealt by Skill and Ultimate by 20.0%. After using Ultimate, additionally increases the DMG dealt by the next Skill by 25.0%.

An extremely competitive alternative that trails Genius of Brilliant Stars by less than 1%. It significantly alleviates CRIT Rate requirements, making Rin quite a bit easier to build.

Best Planar Ornaments

Rutilant Arena
100%

2-Piece Set: Increases the wearer's CRIT Rate by 8.0%. When the wearer's current CRIT Rate reaches 70.0% or higher, DMG dealt by Basic ATK and Skill increases by 20.0%.

Rin Tohsaka's strongest Planar Ornament option as a Main DPS. It provides CRIT Rate while also increasing the damage of her Skills.

Tengoku @Live Stream
99%

2-Piece Set: Increases the wearer's CRIT DMG by 16.0%. If 3 or more Skill Points are consumed in the same turn, additionally increases the wearer's CRIT DMG by 32.0% for 3 turns.

A competitive alternative that performs nearly identically to Rutilant Arena when its requirements are met. While a lot of Rin's gameplay is spent using her Basic ATK to conserve Gem Magecraft, she is able to keep uptime on it.

Rin Tohsaka's Stat Priority

These recommendations are for the Archer Support build, so make sure to switch to the other build if you're curious about how to play Rin as a main DPS.

Body

CRIT Rate

Feet

SPD

Planar Sphere

Quantum DMG Boost

ATK%

Link Rope

ATK%

Energy Regeneration Rate

Stat Priority

SPD

CRIT Rate

CRIT DMG

ATK%

These recommendations are for the Main DPS build, so make sure to switch to the other build if you're curious about how to play Rin as a support for Archer.

Body

CRIT Rate

Feet

ATK%

Planar Sphere

Quantum DMG Boost

Link Rope

Energy Regeneration Rate

Stat Priority

CRIT Rate

CRIT DMG

ATK%

ATK

Recommended Endgame Stats for Rin Tohsaka

Theserecommendations are for the Archer Support build, so make sure to switch to the other build if you're curious about how to play Rin as a main DPS.

ATK

2400+

SPD

134+

CRIT Rate

80%-100%

CRIT DMG

120%-160%+

These recommendations are for the Main DPS build, so make sure to switch to the other build if you're curious about how to play Rin as a support for Archer.

ATK

2800+ (outside of Battle)

CRIT Rate

90%-100%

CRIT DMG

150%-200%+

Traces Priority

Skills Priority

Talent = Skill > Ultimate > Basic ATK

Major Traces Priority

Elegant Conduct = Ladylike Poise > Inbound Prosperity

Rin Tohsaka Build Comments

When paired with Archer, Rin provides numerous buffs to both Archer and herself. She also has a unique ability that activates when Archer's Skill Point consumption leaves the team with 3 or fewer Skill Points. When this condition is met, Rin and Archer launch a Joint ATK against all enemies and replenish Skill Points.

Rin also gains Gem Energy whenever Skill Points are generated or consumed. She uses Gem Energy to deal high amounts of DMG with her Enhanced Skill. When she uses this ability, Rin consumes Skill Points until only 2 remain.

Rin Tohsaka can be played as either a sub-DPS or a main DPS, and she consumes Skill Points to deal high amounts of DMG. Unlike her Archer Support build, Main DPS Rin Tohsaka focuses on maximizing the damage of her Enhanced Skill, Second Magic Experiment. This ability converts Gem Energy into repeated attacks against random enemies, allowing Rin to deal substantial amounts of damage while rapidly consuming Skill Points.

Rin gains Gem Energy whenever allies consume or recover Skill Points. When she reaches 15 Gem Energy, or when the team has 7 or more Skill Points, her Skill becomes enhanced. Then, Rin consumes Skill Points until only 2 remain and converts those Skill Points into additional Gem Energy, increasing the DMG multiplier of Second Magic Experiment per Gem Energy.

As a result of Hypercarry, her personal investment becomes significantly more valuable, making her Signature Light Cone and Eidolons substantially stronger than they are in Archer Hypercarries.

Rin Tohsaka's Best Teams

To learn all about Rin Tohsaka's synergies and best team compositions, check our dedicated Rin Tohsaka team page below:

Rin Tohsaka Teams

Rin Tohsaka's Best Eidolons

When played with Archer, Rin does not require vertical investment. With this in mind, staying at E0S0 or E0S1 is cost-efficient. However, those who want to invest further should aim for E2S1. Her E1 and E2 increase her DMG, while her S1 increases her personal DMG and grants DEF Ignore to the whole team.
When played as a main DPS, Rin Tohsaka wants her E1 to deal competitive DMG.
Listed below are our thoughts on Rin Tohsaka's Eidolons.

Eidolon	% Diff	% Diff E0	Comment
Zelretch's Apprentice	3%	3%	Unlocks "Shadow Gem" and access to "Second Magic Experiment." A by-context increase that mostly comes from improving Rin's personal contribution. While this performs rather poorly in Archer teams, it is a major boost in teams where Rin is a main DPS and is often vital.
Dimensional Traveler	20%	23%	Grants 30% Skill DMG to Rin and causes all allies' Skill DMG to become 120% of the original value. A solid Eidolon, though its impact is reduced by the team's large amount of non-Skill damage.
Holy Grail War: Victory Memorial	1%	24%	A poor Trace-level Eidolon.
Red Devil: Triple Speed	20%	49%	This Eidolon gives 70% CRIT DMG to both Rin Tohsaka and Archer.
Goddess of Venus's Favor	1%	51%	A poor Trace-level Eidolon.
Nailed It This Time!	3%	55%	Grants 20% All-Type RES PEN. After using her Ultimate, Rin also gains 18 Gem Energy and an extra turn.

Main DPS Rin Tohsaka scales exceptionally well with vertical investment. Unlike Archer Support Rin, who can comfortably remain at E0S0 or E0S1, DPS Rin gains enormous increases from both her Signature Light Cone and early Eidolons.
Players looking to invest into Rin Tohsaka should strongly consider E1S1 as a stopping point. Those wishing to invest further will find E2 and E4 to be her strongest upgrades before E6.

Eidolon	% Diff	% Diff E0	Comment
Zelretch's Apprentice	26%	26%	Rin's most important early Eidolon for main DPS playstyles. It grants access to Shadow Gem and significantly increases the frequency of her Enhanced Skill usage by consuming Shadow Gem instead of Gem Energy for additional Enhanced Skill casts.
Dimensional Traveler	27%	60%	Grants 30% Skill DMG to Rin while increasing Skill DMG dealt by all allies. Since a large portion of Rin's damage comes from her Enhanced Skill, this Eidolon is exceptionally powerful.
Holy Grail War: Victory Memorial	10%	76%	A surprisingly strong increase to her DMG, as her Skill MV is substantial.
Red Devil: Triple Speed	29%	128%	One of Rin Tohsaka's strongest Eidolons. The additional CRIT DMG greatly increases her output, doubling the original value of 70%.
Goddess of Venus's Favor	12%	155%	Another strong Trace-level Eidolon due to the importance of Rin's Ultimate and Talent.
Nailed It This Time!	52%	302%	Rin Tohsaka's strongest Eidolon. The additional RES PEN, Gem Energy, and extra turn, dramatically increase the Gem Energy generation for her Enhanced Skills.

Camaraderia

Guide Author

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This guide is written by camaraderia, a Honkai: Star Rail theorycrafter focused on spreadsheets, optimization, and build recommendations for all characters. He regularly maintains a comprehensive list of resources for upcoming characters and an active theorycrafting community, helping players with realistic assumptions across all investment levels.