Rin Tohsaka
YES for Quantum Erudition — Rin Tohsaka clears waves with Jeweled Sword Zelretch / An Gal Ta Ki Gal Šè while Gem Magecraft supports the squad’s damage windows. Best with Archer / Sparkle / Fu Xuan (Fate dual-DPS). Also strong as a solo Erudition hypercarry with Tribbie / Sunday. Skip when your Quantum AoE seats are already staffed and you need other elements.
Rin Tohsaka is a 5★ Quantum Erudition Main DPS. Skill “Jeweled Sword Zelretch” is the primary in-combat spend. Ultimate “An Gal Ta Ki Gal Šè” is the payoff window for damage or team utility. This Phase 1 page covers kit text, gear targets, and pull notes—team comps stay empty until Phase 2.
Overview
Quick Build
Light Cone
Flickering Stars
Signature BiS when owned.
Relic Set
Scholar Lost in Erudition (4pc) + Sigonia, the Unclaimed Desolation (2pc)
Standard Erudition relic direction for Rin Tohsaka.
Body
CRIT Rate%
Main stat
Feet
ATK%
Main stat
Sphere / Rope
Quantum DMG% · ATK%
Substats
CRIT Rate ≥ CRIT DMG > ATK%
Strengths
- “An Gal Ta Ki Gal Šè” hits every enemy on the field in one cast, so Rin Tohsaka stays relevant when MoC and Pure Fiction spawn multiple targets.
- Talent “Gem Magecraft” buffs allies’ damage for a short window—damage keeps flowing even when Rin Tohsaka is not the active turn.
- Skill “Jeweled Sword Zelretch” dumps a large single-target multiplier into one elite—this is the spend that keeps the rotation honest.
- When you own “Flickering Stars”, Rin Tohsaka’s damage or utility ceiling jumps because the cone was written around this kit’s triggers—not a generic path stick.
Weaknesses
- Follow-Ups from “Gem Magecraft” need allies who actually Basic ATK on schedule—freeze/CC on the team stalls Rin Tohsaka’s off-turn damage.
- E0 without “Flickering Stars” is still clearable, but the gap versus a signature copy is larger than a single eidolon for most Erudition carries—plan the cone before deep eidolon hunting.
- Spamming “Jeweled Sword Zelretch” every turn without watching Skill Points strands the rest of the team—Rin Tohsaka is often the SP sink.
- If “An Gal Ta Ki Gal Šè” is still offline at the end of a MoC cycle, the build is usually Energy/ERR or rotation order—not a missing CRIT roll.
Trace Priority
An Gal Ta Ki Gal Šè carries most of the kit’s damage or utility—level this first.
Gem Magecraft supports the main rotation—raise after the top priority traces.
Jeweled Sword Zelretch supports the main rotation—raise after the top priority traces.
Bajiquan is last priority outside of filling trace materials.
Stat Priority
Open with Technique if it helps, spend Skill to advance the kit’s resource, and hold Ultimate for the damage or buff window. Exact teammate order lands in Phase 2.
Named team rotations and synergy notes ship in Phase 2.
Light Cones
5★ · Path cone
Increases the wearer's CRIT Rate by 0.18%. When any ally character consumes a total of 4 or more Skill Points in a single turn, the wearer gains "Radiant Crown," lasting for 3 turn(s). While the wearer holds "Radiant Crown," all allies' DMG dealt ignores 0.2% of the target's DEF, and the Skill DMG dealt by the wearer increases by 0.72%. Effects of the same type cannot stack.
Why it works —Signature / best-in-slot when owned—passive lines up with Rin Tohsaka’s kit triggers.
5★ · Path cone
For every enemy on the field, increases the wearer's ATK by #2[f1]%, up to 5 stacks. When an enemy is inflicted with Weakness Break, the DMG dealt by the wearer increases by 0.3% for 1 turn.
Why it works —Flexible alternative on the same path—equip if you already own it at higher superimposition.
5★ · Path cone
Increases the wearer's ATK by 0.08%. After using an attack, for each enemy target hit, additionally increases ATK by 0.04%. 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 0.08%, lasting for 1 turn(s).
Why it works —Best accessible option for most accounts—raise superimposition when copies drop.
4★ · Path cone
Increases the wearer's DMG by 0.12%. For every enemy defeated by the wearer, the wearer's ATK increases by 0.04%, stacking up to 3 time(s).
Why it works —Budget path cone—fine while building the account.
Relics
Team Compositions
Primary Fate dual-DPS shell for Rin Tohsaka. Archer anchors the Quantum Hunt seat while Sparkle and Fu Xuan keep SP and survivability online for both carries.
Core carry for this shell — owns the Erudition damage plan and sets the rotation pace.
Archer is the required Hunt partner — Unlimited Blade Works covers single-target elites while Rin clears the field.
Sparkle is the Advance / SP amp — keep her Skill online so Rin and Archer can both Skill every cycle.
Fu Xuan softens MoC / AS chip so both Quantum carries can commit to Skill spam.
Traces & Eidolons
Traces
Deals Quantum DMG equal to 140% of Rin Tohsaka's ATK to one designated enemy.
Deals Quantum DMG equal to 225% of Rin Tohsaka's ATK to one designated enemy.
Deals Quantum DMG equal to 750% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 250% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 25%, lasting for 3 turn(s).
When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 88% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 375% of Rin Tohsaka's ATK and 375% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
After using Technique, gains 10 "Gem Energy" at the start of the next battle.
Deals Quantum DMG equal to 113% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 113% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
Eidolons
If one instance of the Enhanced Skill consumes 30 or more "Gem Energy," Rin Tohsaka gains "Shadow Gem" equal to the amount of "Gem Energy" consumed. While holding "Shadow Gem," enhances Skill to "Second Magic Experiment." The Enhanced Skill consumes all "Shadow Gem," does not trigger the effect that converts Skill Points into "Gem Energy," and does not consume "Gem Energy."
Is it worth getting?
Modest E1: If one instance of the Enhanced Skill consumes 30 or more "Gem Energy. Helpful padding, not a build-defining unlock.
Rin Tohsaka's Skill DMG dealt increases by 30%. While Rin Tohsaka is on the field, Skill DMG dealt by all allies becomes 130% of the original DMG.
Is it worth getting?
Kit add-on: Flat combat-stat bump tied to a specific trigger. Evaluate against your supports—pull only if that specific clause solves a problem you actually hit.
Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Is it worth getting?
Skill + Basic ATK levels only (+2). Free if you roll into it; never spend currency aiming for E3.
When the CRIT DMG boost effect from the Talent "Gem Magecraft" applies to Rin Tohsaka, the effect can stack, up to 2 time(s).
Is it worth getting?
Side-grade: Flat combat-stat bump tied to a specific trigger. Happy if it drops; not a planned stopping point.
Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Is it worth getting?
Ultimate + Talent levels only (+2). Skip as a goal—grab it if you overshoot toward E6, never hard-pity for it.
Rin Tohsaka's All-Type RES PEN increases by 20%. When using Ultimate, gains 24 "Gem Energy" and 1 extra turn.
Is it worth getting?
Whale ceiling: Grants an extra turn when the listed condition fires. Only chase if Rin Tohsaka is your dedicated Erudition main and E0–E2 already feel finished.
Rin Tohsaka clears endgame content at E0 with proper supports and relics. Chase eidolons only after Light Cone and team foundations are online. First stop: E0. Endgame target: E0.
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