Passkey is a 3-Star Erudition Path Light Cone in Honkai: Star Rail. Check out this guide for Passkey's best characters, stats, ascension materials, and how to get it!

Passkey Stats and Ability

Passkey Effects and Overview

Passkey
Rarity	★★★
Path	The Erudition
Ability	Epiphany After the wearer uses their Skill, additionally regenerates 8/9/10/11/12 Energy. This effect can only be triggered 1 time per turn.
Rating	The Erudition

Rating is based on Superimposition 1.

Light Cone Tier List

Passkey Stats

Passkey Superimpose Levels

How to Superimpose Passkey

Superimposing Passkey requires a copy of the same Light Cone to upgrade its ability.

Passkey Best Characters

All Recommended Characters

Recommended Characters for Passkey
Jing Yuan	Serval	Argenti

Explanation

Passkey has average base stats given that it's a 3-star Light Cone. Passkey's ability allows the user to regenerate some Energy after using their Skill, which is useful for characters with a high energy cost.

Is Passkey Worth It?

Best With Serval When Paired With The Herta

Passkey is Serval's best Light Cone if she is paired up with The Herta. This is because it allows Serval to frequently use her Ultimate, which provides more Energy for The Herta's Ultimate.

Temporary Light Cone for Jing Yuan and Argenti

You can use Passkey temporarily if you pulled for Jing Yuan or Argenti. We recommend replacing it with a better F2P-friendly Erudition Light Cone such as The Seriousness of Breakfast!

Passkey Ascension Materials

Total Ascension Materials

Ascension Material	Total
Extinguished Core	12
Key of Inspiration	2
Key of Knowledge	6
Glimmering Core	10
Key of Wisdom	9
Squirming Core	8
Credit	231000

Materials Per Ascension Level

Lvl.	Light Cone Ascension Materials
20 ➔ 30	Extinguished Core x4 Credit x4000
30 ➔ 40	Key of Inspiration x2 Extinguished Core x8 Credit x8000
40 ➔ 50	Key of Knowledge x2 Glimmering Core x4 Credit x16000
50 ➔ 60	Key of Knowledge x4 Glimmering Core x6 Credit x40000
60 ➔ 70	Key of Wisdom x3 Squirming Core x3 Credit x80000
70 ➔ 80	Key of Wisdom x6 Squirming Core x5 Credit x160000

How to Get Passkey

All Unlimited and Limited Banners
Stellar Warp	Departure Warp
Brilliant Fixation	Message From Beyond
Coalesced Truths	Indelible Coterie

Passkey can be obtained by pulling it from any Warp Banner!

All Warp (Gacha) Banners

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
Into the Unreachable Veil	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