The Erudition
Extinguished Core
Dynamic Outlining
Exquisite Colored Draft
Squirming Core
An Instant Before A Gaze
Before Dawn
Into the Unreachable Veil
Life Should Be Cast to Flames
Night on the Milky Way
Ninjutsu Inscription - Dazzling Evilbreaker
Yet Hope Is Priceless
A Dream Scented in Wheat
After the Charmony Fall
Geniuses' Repose
Make the World Clamor
The Birth of the Self
The Day The Cosmos Fell
The Great Cosmic Enterprise
The Seriousness of Breakfast
Today Is Another Peaceful Day
Data Bank
Passkey
Sagacity
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Honkai: Star Rail
Eternal Calculus - Materials and Best Characters
♦ New: Tier List maker and community tier list contest!
♦ Latest: Version 3.7 Summary & Currency Wars
♦ Version 3.7 5★: Cyrene, Phainon, Cipher, Mydei
♦ Upcoming: The Dahlia
♦ Events: Snack Dash & Relic Recon
Eternal Calculus is a 5-Star Light Cone from The Erudition Path in Honkai: Star Rail. Check out this guide for Eternal Calculus's best characters, stats, ascension materials, and how to get it!
List of Contents
Eternal Calculus Stats and Ability
Eternal Calculus Effects and Overview
| Eternal Calculus | |
|---|---|
 |
|
| Rarity | ★★★★★ |
| Path | |
| Ability | Boundless Thought Increases the wearer's ATK by 8%/9%/10%11%/12%. After using an attack, for each enemy target hit, additionally increases ATK by 4%/5%/6%/7%/8%. 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%/10%/12%14%/16%, lasting for 1 turn(s). |
| Rating | 
The Erudition |
Rating is based on Superimposition 1.
Eternal Calculus Stats
| Lv. | HP | ATK | DEF |
|---|---|---|---|
| 1 | 48 | 24 | 18 |
| 20 | 184 | 92 | 69 |
| 30 | 314 | 157 | 117 |
| 40 | 463 | 231 | 173 |
| 50 | 612 | 306 | 229 |
| 60 | 760 | 380 | 285 |
| 70 | 909 | 454 | 341 |
| 80 | 1058 | 529 | 396 |
Eternal Calculus Superimpose Levels
Lv.1
Lv.2
Lv.3
Lv.4
Lv.5
| Ability Effect |
|---|
| Increases the wearer's ATK by 8%. After using an attack, for each enemy target hit, additionally increases ATK by 4%. 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%, lasting for 1 turn(s). |
| Ability Effect |
|---|
| Increases the wearer's ATK by 9%. After using an attack, for each enemy target hit, additionally increases ATK by 5%. 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 10%, lasting for 1 turn(s). |
| Ability Effect |
|---|
| Increases the wearer's ATK by 10%. After using an attack, for each enemy target hit, additionally increases ATK by 6%. 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 12%, lasting for 1 turn(s). |
| Ability Effect |
|---|
| Increases the wearer's ATK by 11%. After using an attack, for each enemy target hit, additionally increases ATK by 7%. 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 14%, lasting for 1 turn(s). |
| Ability Effect |
|---|
| Increases the wearer's ATK by 12%. After using an attack, for each enemy target hit, additionally increases ATK by 8%. 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 16%, lasting for 1 turn(s). |
Eternal Calculus Best Characters
All Recommended Characters
| Recommended Characters | |||
|---|---|---|---|
 Himeko
|
 Argenti
|
 Qingque
|
|
 Serval
|
 Herta
|
 Jing Yuan
|
|
 Jade
|
|||
Eternal Calculus is a good light cone for Erudition characters since it provides a lot of ATK, especially when facing waves of enemies. Most Erudition characters can make use of this Light Cone, especially in Pure Fiction.
Is Eternal Calculus Worth It?
Good F2P Light Cone for Pure Fiction
Eternal Calculus is a good F2P DPS Light Cone since it provides a lot of ATK which boosts the damage of the wearer. This is even more effective against multiple enemies since you'll be able to stack the ATK buff much more quickly.
It also provides a SPD boost if the wearer hits three or more targets. This Light Cone shines in situations where there are waves of multiple enemies, like Pure Fiction.
However, this Light Cone falls short when there are two or fewer enemies since you won't be able to stack the ATK buff quickly before the next attack and there will be no SPD boost.
Eternal Calculus Ascension Materials
Total Ascension Materials
| Ascension Material | Total |
|---|---|
| 20 | |
| 4 | |
| 12 | |
| 20 | |
| 15 | |
| 14 | |
| 385000 |
| Lvl. | Light Cone Ascension Materials |
|---|---|
| 20 ➔ 30 |  Credit x5000 |
| 30 ➔ 40 |  Rough Sketch x4 Credit x10000 |
| 40 ➔ 50 | Credit x20000 |
| 50 ➔ 60 |  Glimmering Core x12 Credit x50000 |
| 60 ➔ 70 | Credit x100000 |
| 70 ➔ 80 | Credit x200000 |
How to Get Eternal Calculus
Purchase From Herta's Store
You can purchase Eternal Calculus for 8 Herta Bonds from Herta's Store in the Simulated Universe.
How to Superimpose Eternal Calculus
Superimposing Eternal Calculus requires the Superimposer (Custom Made), which can be bought from Herta's Shop for 2 Herta Bonds, to upgrade its ability.
Superimposer (Custom Made) Item Guide
Eternal Calculus Release Date
Released on June 18, 2024
| Version 2.3 Phase 1 Release Date | |
|---|---|
 |
|
| Release Date | June 18, 2024 |
Eternal Calculus was released in the first half of Honkai Star Rail's Version 2.3 along with the character Firefly.
Version 2.3 Release Date and Banners Guide
Honkai: Star Rail Related Guides
The Erudition Light Cones
Author
Eternal Calculus - Materials and Best Characters
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