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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 | |
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Rarity | ★★★★★ |
Path | |
Ability | Boundless Thought 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). |
Rating | ![]() |
Rating is based on Superimposition 1.
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 |
Lv. | Ability Effect |
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1 | 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). |
2 | 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). |
3 | 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). |
4 | 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). | 5 | 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). |
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
Recommended Characters | |||
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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.
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.
Ascension Material | Total |
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20 | |
4 | |
12 | |
20 | |
15 | |
14 | |
385000 |
Lvl. | Light Cone Ascension Materials |
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20 ➔ 30 | ![]() |
30 ➔ 40 | ![]() ![]() |
40 ➔ 50 | ![]() |
50 ➔ 60 | ![]() ![]() |
60 ➔ 70 | ![]() |
70 ➔ 80 | ![]() |
You can purchase Eternal Calculus for 8 Herta Bonds from Herta's Store in the Simulated Universe.
Version 2.3 Phase 1 Release Date | |
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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
Eternal Calculus - Materials and Best Characters
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