The Day The Cosmos Fell is a 4-Star Light Cone from the Erudition Path in Honkai: Star Rail. Check out this guide for The Day The Cosmos Fell's best characters, stats, ascension materials, and how to get it!

The Day The Cosmos Fell Stats and Ability

The Day The Cosmos Fell Effects and Overview

The Day The Cosmos Fell
Rarity	★★★★
Path	The Erudition
Ability	Stratagem Increases the wearer's ATK by 16%/18%/20%/22%/24%. When the wearer uses an attack and at least 2 attacked enemies have the corresponding Weakness, the wearer's CRIT DMG increases by 20%/25%/30%/35%/40%, lasting for 2 turn(s).
Rating	The Erudition

Rating is based on Superimposition 1.

Light Cone Tier List

The Day The Cosmos Fell Stats

The Day The Cosmos Fell Superimpose Levels

How to Superimpose The Day The Cosmos Fell

Superimposing The Day The Cosmos Fell requires a copy of the same Light Cone to upgrade its ability.

The Day The Cosmos Fell Best Characters

All Recommended Characters

Recommended Characters for The Day The Cosmos Fell
Herta	Himeko	Jing Yuan
Qingque	Serval	Argenti

The Day The Cosmos Fell is a good Light Cone for Erudition characters that specialize in AoE damage and attacks. The CRIT DMG buff can easily be obtained by attacking multiple enemies with their Weaknesses.

Is The Day The Cosmos Fell Worth It?

Great F2P Light Cone Option

The Day The Cosmos Fell's effect is similar to Geniuses' Repose, but instead of defeating an enemy, the wearer needs to attack multiple enemies with their elemental Weakness to obtain the CRIT DMG buff.

This Light Cone is a great option for Erudition characters if you don't have Geniuses and can shine in situations where there are multiple enemies with the elemental Weakness of the wearer. Geniuses is just way more flexible since it's not locked to multiple enemies.

The Day The Cosmos Fell Ascension Materials

Total Ascension Materials

Ascension Material	Total
Dream Collection Component	15
Key of Inspiration	3
Key of Knowledge	9
Dream Flow Valve	15
Key of Wisdom	12
Dream Making Engine	12
Credit	164000

Materials Per Ascension Level

Lvl.	Light Cone Ascension Materials
20 ➔ 30	Dream Collection Component x5 Credit x4000
30 ➔ 40	Key of Inspiration x3 Dream Collection Component x10 Credit x8000
40 ➔ 50	Key of Knowledge x3 Dream Flow Valve x6 Credit x16000
50 ➔ 60	Key of Knowledge x6 Dream Flow Valve x9 Credit x40000
60 ➔ 70	Key of Wisdom x4 Dream Making Engine x5 Credit x80000
70 ➔ 80	Key of Wisdom x8 Dream Making Engine x7 Credit x160000

How to Get The Day The Cosmos Fell

Purchase from the Forgotten Hall Store

You can purchase The Day The Cosmos Fell for 200 Lucent Afterglow from the Forgotten Hall Store.

Forgotten Hall Guide

The Day The Cosmos Fell Release Date

Released on February 06, 2024

Version 2.0 Release Date
Release Date	February 06, 2024

The Day The Cosmos Fell was released in the first half of Honkai Star Rail's Version 2.0!

Version 2.0 Release Date and Banners Guide

Honkai: Star Rail Related Guides

All Light Cones

The Erudition Light Cones

The Erudition Light Cones
An Instant Before A Gaze	Before Dawn	Eternal Calculus
Night on the Milky Way	Ninjutsu Inscription - Dazzling Evilbreaker	Yet Hope Is Priceless
After the Charmony Fall	Geniuses' Repose	Make the World Clamor
The Birth of the Self	The Day The Cosmos Fell	The Seriousness of Breakfast
Today Is Another Peaceful Day	Data Bank	Passkey
Sagacity